Unable to turn regulator bracket upside down do you mean put the regulator on the upper side of the bracket.Yes, trim the top bushings and move the regulator mounting bracket upside down, so that your shock resevoir will fit. You will need to bend or trim the tab in the middle of the bracket (up to you). Other than that it's pretty straight forward.
Hi John,Unfortunately, I still do not have any. My usual guy that parts out 2015 R1s has been a step back from parting bikes out recently. Hoping he will get back to it soon though.