318 motor + 904 Tranny

I'm aware this is a hugely typical and popular sitch... swapping out the 6 cyl in my 65 Cuda for a 318 / 904 transmission combo. I might be open to a rebuild scenario, but would ultimately like to obtain a recently running 318 from a seller doing a big block upgrade or something similar. WITH the 904 would be preferred. Thanks!
Let me know whatch'a got !
Have a rebuilt and run low mile stock cam 318 2brl motor along with a sb 904 that probably needs rebuilt.