LOST: Looking for my original motor,727 trans and build sheet

Just throwing this out there that I am looking for my original 340 for my '71 Demon that i'm restoring. Wouldn't mind finding the original 727 Torqueflite to go with plus the build sheet for it as well. My car was only a rolling shell when I bought it back in 2008,so it was missing the motor and transmission. I know it's like finding a needle in a haystack but thought I'd give it a try once.

Vin #LM29H1E112446