I used a starter from DB Electrical. Fits great and works great. Here's the EBay link:
http://cgi.ebay.com/ebaymotors/NEW-...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
My TTI's are very close to driver's side torsion bar, probably 1/8". But to ensure minimal engine movement I used a torque strap and new poly mounts (73 k-frame in a 72 Demon) from Scumacher Creative Services:
http://www.engine-swaps.com/index.html
Engine location, height, and correct angles make a huge difference. Check your measurements with TTI directions. Also, the angle of the engine from front to back should be 2 degrees down (lower at tail shaft). Use a cheap angle finder from Lowes or Home Depot against the damper to check angle.