North American Trainz

I need to redo am assets load mesh, but I do not have the g-max file anymore. Not sure where any points were or anything. Any suggestions on how to rebuild this mesh as a new load file to add to the main assets files?

my only suggestion is start making that mesh again. there's no was to reverse engineer the meshes from .im to .3ds.

I got it fixed, just made a new plane and set by trial and error. But everytime I do something to my assets, I see a better way. So the Articulated Mine Truck is better now than it was. Was one of my first attemps at a drivable vehicle and needed updating anyway! I have learned much since I first made that one.