FSX B737-800NG Model for FSX/P3D


i am new here, found this Forum because i am seaching a nice 2D Model for my Homecockpit. This is build as a B737-800NG.
The Problem is that i can not use the PMDG NGX, where all this is working, becuase i am building a Home Cockpit. So i can not use any Logic ( like PMDG ) from the Gauges or *.dll's.

The Problem i have is that i could not found any model which have all what i want.
The Important things are:

1. All Light Switches work as they should. Means the Logo Lights, Wing Lights, Retracteble Taxi Lights, Fixed Landing and RUnway TurnOff Lights have to work alone. So, when i turn on the Runway Turn Off Lights on, the i want only These Lights to have on.
That is not working in any 3DModel i found.

I tried the Overland, Kitty Hawk, PMDG FS2004 and the Standard Version.

What i have is a DMax source of a Model.
But here is the Problem that i am not a 3D Designer. So i have no idea haow to change this Model.

For that i want to ask if there is anyone who can do that.

I think for anyone who has a idea from 3D Modelling for FSX can do that, and i hope here is anyone who can help me?

About the Payment we can talk later if there is anyone who can help.