You really have to create a spreadsheet. 3.0 Option 1, 3.0 Option 2, 3.2 Option 3, 3.2 Option 4.
Options are basically:
1. Build to factory running spec, hp and cost, and add subjectives
2. Cams and all kinds of stuff like head porting, hp, cost, etc
3. Plug & play 3.2, etc.
4. 3.2 with exhaust and chip mods, etc.
you can add options as you see fit obviously.
You've got to run the numbers on these options and include time: your time, time to get the running, etc. Winter is coming soon so you don't have to get anything done immediately though I drive my car, even with headers and no heat, until first salt, usually in December.
You've gotten a lot of very good, and some bad, advice over the last 2 years. At this point, I think, if you don't make a plan and take advantage of Bob's very generous offer, the car will just languish. Who wants that?
There is something to be said for getting your 3.0 reassembled per Option 1 and just drive the car for a while even if it's not the Corvette you really want.