6 cyl trans on v8?

Yup....been lookin at it for a bit........gonna have to do a trans tunnel tune up.....thats why I was lookin at the 727 or 904 route. I just can't come up with a good combo of $ and gear ratios that will equal what I can get with $400 at the junkyard. I'd leave the 904 2 cable shift 65 only trans in my car if it didn't cost over $5oo to change 2 cables and a few seals. I'd run an 8 3/4" rear if it wasn't $1500 for what I want. It's hard to be Mopar to the core and a cheap-*** at the same time.