You should ask around at the Slant Six event next weekend. Lots of early As there. People bring stuff to swap... not transmissions, usually, but they might have one at home.
I went to the Petaluma show. Not a lot of slant representation there. I would SOOOO be there on Sunday but I have to do a 13 hour work shift. It'll help me get more slant parts tho. lol. You guys have fun and post some pictures!