Have you guys seen that s13 with the 1Jz in it... i think its turbo daves.... If you're going to go all out, GO ALL OUT heh ...
as far as the sentra goes, if you have the money for the RB swap and all the fabrication that goes along, why not just build your SR?
forged pistons, etc,race rods, good blockwork, - then get some nice cams, new valves, p/p the shit out of the head - then just throw on a bad ass fuel/turbo setup a high hp build SR... for cheaper than a stock RB swapped into your car.