I’d mock up the valvetrain when you get everything back and check the net lift at the valve with a spring load similar to what you’ll be using.
Then you’ll know exactly how much lift you’re dealing with, so a better decision can be made on the springs.

I’d also check with the cam grinder and get a sense of how much spring they feel you’ll need to get to 7500 with steel valves.

Without knowing any of that, I’d say you’ll probably need to figure out a way of getting to 1.950, and using something like a PAC 1225.