I use the Ofna 1/8 Off-Road Compact Starter Box, works really well. You will have to chamfer the edges of the fly wheel slot in th chassie so the start wheel dosen't hit. If you use this starter don't use any spacers at all the starter won't catch the flywheel if you do.
if you need any more help with this starter box let me know i can take pic's of how i have my stuff set up.