Sorry Dan, I was speaking to Glenn and looking at your post. I didn't realize it was your post using one of his pics and one from internet, Got discombobulated. I even said "Dan". Oh MY Gosh....Just saw black and red colors. Glenn if you want help with bolting spots, I guess we need more pics. Also Glenn, would turning the stand plate 45 or 90 deg before bolting do anything?
If it does you can drill a new pin hole (not on same plane as the other).
For one of the mounts you can go straight thru plate into block and just use a portion of the arm as a spacer. No arm offset with that one. That may give more oportunities. Need longer bolt for that maybe. You may have tried that already.
If Dan gets more pics from the example that may really help.