I just wanted to post an update. I ended up taking a gamble and just pulling the trigger on some new tires. I really wanted the PS4s but wasn't entirely sure they would fit. I had a good feeling S-04's, PSS, or V12's would fit based on prior posts (albeit years and years old).
The PSS had several specific options for Porsche, Mercedes, et al. and I wasn't sure what to go with while the Hankook's seemed to have pretty bad feedback from this forum so I opted for Bridgestone. I couldn't find any stock rims running the RE71's either so I was on the fence about going all in with them.
I ended up getting Bridgestone Potenza S-04's for my 19x9 and 19x10 Sports rims in these sizes respectively:
265/35 & 305/30
The front tires fit like a glove and the rears also fit well although the rim is slightly engulfed by the tire (providing a little extra protection against curb rash). The height--26.3--is very close to OEM. I've had no rub issues on my stock suspension.
To be fair, I've had a pretty limited amount of time driving on them so as the months go on I'll provide more updates.
So far though I am VERY pleased. The tires grip great and with FI my OG stock rear 265's were getting clobbered by the horsepower. These definitely hold it a lot better and give me more traction and confidence.
Here are a few pics for now:
