If I had to install spacers then I am ordering RPF1 17x8" with 35mm offset with 225 tires the next day. That would add about 6-7mm to clearance. I am planning to get wheels anyways, I was just waiting for these tires to wear out.

Took some pictures

Looks more than I have on my track setup. Send it!

Just an update, I didn't end up using spacers. I used drill bits from smoother end to figure out how much space there is, it's between 6mm and 7mm. I am thinking about hypergram wheels now when time comes, they add about 8mm and 225 tires would take 5mm out of it, leaving me at ideal 10mm clearance.