Fitted overdrive trans and need to find a starter motor to fit.

I just took my first open road trip with my new RH42 behind an LA 318. Your gonna love it! I just hooked both the overdrive and the lock-up torques converter to a pair of switches. Out on the interstate, 70 mph 3rd gear 2300 rpm, hit OD - 1900 rpm, hit lock up - 1750 Rpm.