Nothing to get flamed for- you use what works. I honestly forgot about the Mustang/Falcon/Maverick rears- just don't mistakenly get a 4 bolt... then you're really SOL. The late 7 1/4 is probably easier to locate and MUCH cheaper, as long as you're not pushing a lot of power through it. 8 1/4 or the Ford rear would be second choice, just because 8 1/4 s are starting to go up in price as a result of the ridiculous prices some people are asking for 8 3/4s.
OP- you've got a few reasonable choices here- now it's just a matter of what you can find, and how much $$ you feel like spending!
