hey the best you could do is fit an rb20 de or the turbo model the fuel pump from most nissans should fit the arts are fairly interchance able the suspension is interchangeable with the s13's as well my web site has a bit of info on them
plugs you should be able to use rb30 type oil filters the same.
brakes similar to silvia's is it auto or manual?
here is a pic of my cefiro
meggala