I don't really think you are concerned about much when you are putting a SBC or even a BBC into a bike, let alone a bar stool.

I'm holding out for the TT LS7 option.....

I talked to Jeff Schwartz, he's working on a TT LS7 crate motor conversion already! There's a guy in the Chi-town area that makes lazy-boy go carts out of old lawn tractors.