Need BRP Sub Mount measurements (XRR)

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.

Call BRP and ask for Jim Rios. He owns the place and is a great guy. I think they will help you.

He has been pretty helpful to me. A few years ago I asked him to make me a set of the 1X triple clamps without anodizing or anything. I'm not real blingy. It took a few months for new batches to be run but he did it. I sent him a few bottles of wine for his troubles. Real nice guy. Good photographer too.