Help finding correct hub centric rings for my Mazda
I have a bit of a strange issue I was hoping someone could help me with. I have a 2020 Mazda 3 Hatchback, and it has an unusually large hub bore of 67.1mm. I also bought some new wheels, 18x8 BBS SR. BBS uses this strange proprietary hub ring system called PFS, more here: http://bbs-usa-appguide.com/BBS%20Hardware%20Guide_Oct_2011.pdf
The issue here is that the official BBS PFS kit for new Mazdas, 82mm OD to 67mm ID (not 67.1mm but I figure a tenth of a millimeter is irrelevant here) is sold out everywhere. Literally everywhere. I found one eBay seller who had each ring listed for $25, messaged him, and he said they were also sold out.
I contacted a Mazda specialty shop as well as my local performance shop to see if they can source them. If not, I'm going to have to stoop down to more... ghetto means. I'm curious if you guys have any thoughts.
Option 1: Get these PFS rings made for BMWs, 82mm down to 72.6mm with the spring clips to hold them in: https://www.ebay.com/itm/114177835425
Then get these aluminum hub centric rings from 72.6mm to 67.1mm to fit the wheel: https://www.amazon.com/dp/B08SQ9GDCN
I figure since both are aluminum, it should be completely safe. Really, what's the difference between one hub centric ring and two, especially when one is clipped into the wheel and can't come loose?
Option 2: Get a set of Nissan PFS rings in 66mm and have a machine shop take a millimeter off the inside: https://www.ebay.com/itm/184842087073
There are multiple reasons I'd like to avoid this. First, it's EXPENSIVE. $100 for four rings, no spring clips, plus machine costs. The second reason is that machining in the Bay Area is stupid expensive because labor rates are sky high. That's why even getting a custom exhaust made is more expensive than a pre-made one from a company like MagnaFlow.
Option 3: Don't run hub centric rings? Probably bad idea, huh? Especially since the tires going on the wheels are RE-71Rs. Super sticky.
2000 Toyota MR2 Spyder, 2020 Mazda 3 Hatchback 6MT