RE-71R's are a great tire! I think they are a bit on the narrow side as well. I have a set of 255's and they are narrower than my previous Yokohama AD08's. The PF01 is also a strong wheel and glad you are able to find the size you need. PF01's should be around $300 bucks each and lots of people use them on the track!
I mean, once the job is done and the rear end is centered, I just need to measure everything up to verify it will fit. Where are you finding them for $300? Silver or Black?
https://www.summitracing.com/int/parts/enk-4608956635sp/overview/
