Which Tremec TKX Do I Get

I prefer the wide ratio T56 gear set with 2.97, 2.10,1.46,1.00, .80, .63. I actually wrote to Tremec about why not make a modular mounting plate with multiple bolt patterns, bearing retainers to mount to a Mopar, AMC, etc. We'd only have to change clutch disc. Of course they directed me to one of their many distributors like that's gonna do any good. I think the "safe" bet is the 2.87 first gear for me. That .68 OD will make my 3.55 a 2.41. I could hit 80mph @2300! Right now I run 60@2600.