Grant,
Is it the standard model T or the touring car?
I just built a 1920s model T that doesnt look like it would be too hard to make NG..
But from what I have seen most RRs did the conversion differently.
The touring car kit that comes with the conversion stuff to make it a track car is actually an almost perfect model of the V&Ts track car.
I would think that you are going to have to shorten the axles and maybe do some body modification.
Below is a picture of a neat old Ford track car that ran on the WSL.
-=Andrew=-