Need someone who has a BRP submount on their XRR:

I need to know what size the 2 large mounting bolts are? And then need to know the distance from the center of the two large mounting holes/bolts.

The reason being, I bought an XRR that has aftermarket upper triple and independent mounts (see below). I want to add the BRP submount and am hoping my bar clamp holes will line up or be very close to the BRP measurements so I can save on not having to buy the submount and upper triple clamp.