I'm guessing that given your direction you're going to blow off my contrarian advice. Nevertheless, I'm going to give it, so buckle in. If you listen, you'll save yourself a boat load of money that you can invest in other parts of the car or in replacing future broken parts without costing yourself an ounce of power or fun.
Don't swap the gears, man. That "turbos need load" thing is garbage. They do. I'm not debating that. It's just that if you're not blowing off the tires, you're loading the turbos. They'll get the load if you get the traction. Also, there are ways to load a turbo before the launch. With the shorter gear, you're going to come out of the hole harder, which is where it counts the most in a straight line. Your launch will be harder and your ETs will suffer by going to 3.27s. So, leave them in for now. You can always do it later, and when you see they work just fine, you won't bother. You won't need to swap, unless you're doing it for other reasons. So, save your money.
For a stock block H/C/I 302, anything from a 60 to a 70mm T4 flange turbo will spool well on the street for a 302 and provide more than the 500 rwhp that is capable of cracking a stock block. Don't spend more than you need to on the neatest whiz-bang bearings. I did, and it's wasted money, IMO. As long as the turbo isn't oversized, it'll spool very quickly. An old journal bearing Master Power T70 turbo with a .68 A/R turbine housing will spool damn near instantaneously and will boost threshold well under 3k rpm. Back then they went for $500 new. You can find one or something near it in spec for a couple hundred bucks.
The alky is overkill, too, as you'll be able to get to block splitting power on pump gas with a safe, conservative tune. And, the swap to the holley is also unnecessary. It's a fantastic intake, but it's not going to make more low end torque than your GT40, and low end torque is what gets the turbo spun up in the first place. You're also not going to make more power, because once you hit 500 rwhp, that's it, and your block is done. Unless you're willing to frequently replace shortblocks or you upgrade to an aftermarket block, you'll gain nothing from this swap.
Here's the thing, your combo makes ~270-ish rwhp as it sits, n/a. Add 15 psi to that, which with an intercooler you can do on pump gas given your low compression ratio, and you'll be pushing roughly double that at ~540rwhp. That's more than you're going to want to with a stock block. So really, at +/- 13 psi, you'll reach the block's limit.
I'm not going to advise against 60 lbs injectors, because they can and will work, but 42 lbs/hr or bigger will do, and if you plan to control them with the stock EEC-IV, it'll be easier to keep smaller injectors lean at idle and cruise. Good choice on the fuel pump. It'll be plenty.
There, I just saved you gears, intake, fancy bearings, & alky system money, time, and unnecessary complexity! Getting a turbo 302 going is complex and expensive enough.
I would caution you against over revving and over torquing the motor. You can tune out a lower end torque spike when the boost hits by pulling timing. I'd shoot to limit the motor at 550 rwtq, 500 rwhp, and 6k RPM. Maybe set the limiter there and shift at 5800. Tell your tuner to stay very conservative. With 2 psi (~50-60 rwhp) to spare, there's no reason to push it.