Ok, so with only a 4” backspace on the 17x7’s don’t go any bigger than 215/50/17’s up front. Those should work though.
In the back, if you want to run 17x9.5’s there’s no reason to do a 3” relocation or mini-tub, you can’t run a wide enough tire on that rim to make it worthwhile. You really don’t even need to do the 1/2” spring offset as a 275 is really about the widest you’ll be able to go, and with a 5” backspace and BBP axles a 275 should already fit.
I looked into the Nitto’s, they have a 275/40/17 in their drag radials but that isn’t a ton of sidewall, that’s a 25.6” tire. They have a 555 G2 in 275/50/17, which would be great as that’s 27.8” tall. But that’s a handling tire for modern cars, not really designed as a drag tire. There is an M&H racemaster drag radial in a 275/50/17 if you want to do that instead of a Nitto.
Honestly for what you’re describing, narrow tires up front, “street slicks”, not low profile tires you may be better staying with 15’s. I know I don’t say that much, but it really depends on use.