RPF1s DO come in +22, I have some.
But they are 17x9... Also, RPF1s only come in silver, black, gold and chrome, so if you want a different color you'd have to get them painted.
In my opinion do whatever it takes to use the thinnest spacer in front, if you have to use a spacer at all. I have to use a 10mm spacer in front, added ARP long wheel studs and only had to roll the rear and I'm good. I know you guys have a lot more room to play with, but either way with that much tire I wouldn't think twice about rolling the fenders and just do it anyway.