the series II grill wont fit as its bigger (doesnt fit between the 2 series 1 lights). and the series II reinfircement is totally different than series 1.
to do a series II conversion on a series 1 you need to change the re-inforcement, headlights, grill, bonnet and bumper.
if you only want to swap the bumper you'll need the re-inforcement for the series II cause its different to the series 1.
Having sold my car I have a few parts some which i had installed on the car and some I never got a chance to put them on.
1) Complete GTR cluster $300
2) Genuine GTR rear strut brace $200
3) SARD trigger Electronic boost controller SOLD
4) Brand new HKS Type 0 still in box $180
5) Mines ECU for R33 GTST $650
6) Blitz Mesh Pod filter SOLD
7) Apexi Power FC to Suit R33 GTST $1175
Most jap suspension is stiff, I've had Tein, GAB, HKS and the best ones for our conditions are the HKS ones (Hyper-D). they are expensive but they are one of the best.
hard to describe where they are, but the are big round bushes. if they are gone you'll see that there is a bit oil on them. they are actually on the edge of the plastic cover under the engine from the front. they would cost something like $150
it is an Electronic Boost controller, it has 2 boost setting buttons on it. and a scramble button. it also has an inbuilt electronic boost guage as well as shows the peak.