I sure hope there is help for this.

Hello Everyone,
I put my new motor in my 71 Scamp this morning, and as usual I forgot one small thing.
I forgot to line up the flywheel and torque converter before I bolted the tranny up. Does anyone know an easier way to line them up before I start installing bolts an have to keep taking them back out ??? I really hope someone has a tip for this, not looking forward to taking the bolts out three or four more times, ugh. Thanks.