I don't know about GTR's, but for S13/S14/S15 you can get tie rod ends brand new from Pedders for around the $25 mark.
Might be worthwhile checking that out before spending time putting second hand items on your car.
Greg
I've got a series 2 RB25 with gone bottom end (not too sure but probably just a spun bearing) for $500.
I know you said you don't need the head but this motor is almost complete minus the turbo.
Greg
Heating the whole headlight to 150 degrees makes it very easy to damage the actual headlight itself.
Do you have a link to where you got the covers from?
I can't seem to find any for R32's, only for S13's.
It's not too difficult.
Smash your glass lense, use a heat gun to heat the silicone one area at a time and then pull the glass out.
DO NOT heat the whole unit (or attempt to) and take the glass out in one piece. You'll melt the housing.