Triangulation is mostly fixed by use of thomthom's Cleanup3; some remaining Edges must be manually fixed with Push-Pull, Delete.
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I just ran thomthom's Cleanup3 plugin on the model after manually fixing the extra Edges on MSV letters; here is the results:
Cleanup Statistics:
> Edges Reduced: 211650
> Faces Reduced: 152
> Purged Components: 0
> Purged Layers: 0
> Purged Materials: 0
> Purged Styles: 0
> Skipped Locked Definitions: 0
> Total Elapsed Time: 6s
Validity Check:
CEdge (10896) and CEdge (10901) connect the same 2 vertices - fixed
CEdge (13610) and CEdge (13636) connect the same 2 vertices - fixed
CEdge (13649) and CEdge (13655) connect the same 2 vertices - fixed
CEdge (31304) and CEdge (31308) connect the same 2 vertices - fixed
CEdge (31528) and CEdge (31533) connect the same 2 vertices - fixed
CEdge (44300) and CEdge (44311) connect the same 2 vertices - fixed
CEdge (58446) and CEdge (58455) connect the same 2 vertices - fixed
CEdge (58566) and CEdge (58570) connect the same 2 vertices - fixed
CEdge (58723) and CEdge (58736) connect the same 2 vertices - fixed
CEdge (68292) and CEdge (68295) connect the same 2 vertices - fixed
CEdge (68348) and CEdge (68353) connect the same 2 vertices - fixed
CEdge (85906) and CEdge (85922) connect the same 2 vertices - fixed
CEdge (86210) and CEdge (86222) connect the same 2 vertices - fixed
CEdge (86219) and CEdge (86231) connect the same 2 vertices - fixed
CEdge (86250) and CEdge (86380) connect the same 2 vertices - fixed
CEdge (86802) and CEdge (87056) connect the same 2 vertices - fixed
CEdge (103012) and CEdge (103015) connect the same 2 vertices - fixed
CEdge (103041) and CEdge (103042) connect the same 2 vertices - fixed
CEdge (103152) and CEdge (103155) connect the same 2 vertices - fixed
CEdge (125668) and CEdge (125720) connect the same 2 vertices - fixed
CEdge (125710) and CEdge (125761) connect the same 2 vertices - fixed
CEdge (125715) and CEdge (125743) connect the same 2 vertices - fixed
CEdge (125718) and CEdge (125731) connect the same 2 vertices - fixed
CEdge (130861) and CEdge (130864) connect the same 2 vertices - fixed
CEdge (131264) and CEdge (131267) connect the same 2 vertices - fixed
CEdge (134885) and CEdge (134888) connect the same 2 vertices - fixed
CEdge (187902) and CEdge (187990) connect the same 2 vertices - fixed
CEdge (188434) and CEdge (188440) connect the same 2 vertices - fixed
CEdge (224156) and CEdge (224225) connect the same 2 vertices - fixed
CEdge (224540) and CEdge (224542) connect the same 2 vertices - fixed
CEdge (224754) and CEdge (224755) connect the same 2 vertices - fixed
CEdge (233484) and CEdge (233542) connect the same 2 vertices - fixed
CEdge (247664) and CEdge (247665) connect the same 2 vertices - fixed
CEdge (247710) and CEdge (247711) connect the same 2 vertices - fixed
CEdge (332822) and CEdge (332823) connect the same 2 vertices - fixed
CEdge (333042) and CEdge (333045) connect the same 2 vertices - fixed
CEdge (336200) and CEdge (336203) connect the same 2 vertices - fixed
CEdge (336960) and CEdge (336962) connect the same 2 vertices - fixed
CEdge (860505) and CEdge (860506) connect the same 2 vertices - fixed
CEdge (860512) and CEdge (860517) connect the same 2 vertices - fixed
CEdge (860537) and CEdge (860540) connect the same 2 vertices - fixed
CEdge (860549) and CEdge (860550) connect the same 2 vertices - fixed
CEdge (889192) and CEdge (889347) connect the same 2 vertices - fixed
CEdge (905312) and CEdge (905313) connect the same 2 vertices - fixed
CEdge (905319) and CEdge (905325) connect the same 2 vertices - fixed
CEdge (905362) and CEdge (905363) connect the same 2 vertices - fixed
CEdge (1048372) and CEdge (1048525) connect the same 2 vertices - fixed
CEdge (1101520) and CEdge (1101521) connect the same 2 vertices - fixed
CEdge (1101527) and CEdge (1101532) connect the same 2 vertices - fixed
CEdge (1101552) and CEdge (1101555) connect the same 2 vertices - fixed
CEdge (1101564) and CEdge (1101565) connect the same 2 vertices - fixed
CEdge (1130207) and CEdge (1130362) connect the same 2 vertices - fixed
CEdge (1146327) and CEdge (1146328) connect the same 2 vertices - fixed
CEdge (1146334) and CEdge (1146340) connect the same 2 vertices - fixed
CEdge (1146377) and CEdge (1146378) connect the same 2 vertices - fixed
CEdge (1292156) and CEdge (1292309) connect the same 2 vertices - fixed
CEdge (1309975) and CEdge (1310132) connect the same 2 vertices - fixed
CEdge (1325718) and CEdge (1325719) connect the same 2 vertices - fixed
CEdge (1325768) and CEdge (1325769) connect the same 2 vertices - fixed
CEdge (1624473) and CEdge (1624474) connect the same 2 vertices - fixed
CEdge (1624480) and CEdge (1624485) connect the same 2 vertices - fixed
CEdge (1624505) and CEdge (1624508) connect the same 2 vertices - fixed
CEdge (1624517) and CEdge (1624518) connect the same 2 vertices - fixed
CEdge (1838342) and CEdge (1838495) connect the same 2 vertices - fixed
It now is somewhat more manageable in Sketchup workspace, but the porch furniture needs decimation inside Groups.
GaryGB