I would test it if you can before buying new calipers. R8000 do have good clearance but my recollection is they still have a small measure of drop from the mounting boss so might foul. I've said it a few times before but Sram Rival 22 calipers have the best clearance i have found in a short reach caliper. The caliper arms sit flush with the underside of the mounting boss so you (should) retain what ever clearance you have at the bridge.
I would test it if you can before buying new calipers. R8000 do have good clearance but my recollection is they still have a small measure of drop from the mounting boss so might foul. I've said it a few times before but Sram Rival 22 calipers have the best clearance i have found in a short reach caliper. The caliper arms sit flush with the underside of the mounting boss so you (should) retain what ever clearance you have at the bridge.