LHD HT TT 6spd. I don't care about open air driving on 4 wheels; I'd rather have the structural rigidity and simplicity of design. I've got a beat-ass loud-ass chopped up early 80's HD that scratches the itch. Hell my 97 might even be a hard top by now.. I never take the sport roof off.
I'd keep the LHD HT TT 6spd bone stock, and casually enjoy the years-ahead/punching above it's weight class performance Toyota engineers so carefully built into the car. This would be my first choice IFF I could also have a NA-to-TT manual conversion car that I could feel OK about modding and beating the crap out of. Coming in close third would be a Tacoma S-Runner 2JZ-GTE swap. Someone has done it before. Google "Supratrucks".