1. I wouldn't exactly consider a turbo that completely spools at 6500 RPM very quick-spooling. If you're looking into a T3 Super 60(which would suit the ZC pretty nicely), you can expect it to spool considerably earlier than 6500 RPM.

2. If it's a street car, then you want it to spool as quickly as possibly, without running out of steam in the higher RPM range due to thermal efficiency issues. Again, the T3 Super 60 should be more than enough to suit your needs, unless you plan on running considerably higher boost levels. That would, of course, necessitate new sleeves. You should be able to make 200whp with the Super 60 with good tuning.

3. If you're on a budget, you can't really beat Eagle rods and Wiseco pistons. You can get the rods for around $320 and the pistons with rings for about $350. They should be more than adequate to handle the power you plan on making.

4. I don't know how ZC cranks are, but a micropolish couldn't hurt. If you're going to balance the crank, then I assume you'll be balancing the entire reciprocating assembly. I don't know whether or not you'll make power at 8000RPM. You can figure that out when you do your dyno tuning.

5. I'm not exactly sure what you're talking about there.