so, 15" rallye in small bolt is a tough one. i think wheel vintiques is the only one who makes them.
here's the summit link:
https://www.summitracing.com/parts/wvi-61-5754044
so basically it's a stock size, offset which is perfect for what you're doing.
i think you're on the money tire size 26-ish inches look right on these.
i don't know if you're going to be able to fit 225's up front, but you can for sure fit 205's and probably 215's if you're not too low.
i don't know if you want to run the same thing on all four corners, but the safe play would be 225's out back and 205's up front or the 215's if you can fit them.