Another 727 question

This trans is behind a /6, all I'm wanting from it is the /6 to small block trans adapter that's sandwiched between them, the /6 and the 727 would be up for sale once again once I got that plate out from between them. I don't want to have to struggle to pass these along and get at least most of my money back in selling the motor and trans. Probably separately, I'm guessing.
if the old 727 isn't all that desirable, I recon I'd have a tough time reselling?

And as Rusty said I would hope I wouldn't have to scrap the leftovers once I got what I want from it, that I could pass them along to someone else who could get some use from them
Again, if I'm not mistaken; there are 2 parts to the adapter: the block spacer and a crank flange spacer.
Something you may need to deal with is the crank spacer. If the crank spacer is bored for the smaller convertor snout, you will need to have it bored out to use a later large snout convertor.
Trucks of that vintage also used a non standard 3 bolt direct drive starter (similar to the first of the second gen 4 spd. hemis) on the small and big block versions, but I'm not sure about the slants. Just something to keep in mind.