There is a slight lip that was molded in to the rear decklid.
He would like to lower the car but is already worried about clearance.
As for the transmission, unfortunately there aren't really any options other than the stock 94 or the slightly stronger 99 JDM spec. Talking to a few guys, if you run them hard enough they all break so have a back up on hand. The guy that installed new fuel lines and dual pump set up had three in his shop (sitting next to what was left of a flywheel from his 7s muscle car) and said if we break it on the dyno he can have another one installed in a bout an hour and a half.