I'm a bit late to the party. Sorry.
Will you elucidate a bit on the motor/axle alignment or is this taken care off buy putting the bushings on the bottom of the rail and using 1/2 stock? It all sounds too simply, which off course it isn't of might not be.
![Image](http://www.homeracingworld.us/SHADOW/Coppermine/albums/userpics/10004/IMG_1318.JPG)