Wow, impressive restoration, judging by the pics!
I saw that the prop shafts are still in place. Did you decide to stick to the original BPM stuff? If so, I couldn't agree more fwiw.
Thanks for the contact for BPM v drives but (having thought long and hard about it) I've decided to convert to sterndrives, so have just finished sealing up all of the holes for the original prop shafts and rudders. There were lots of 'em!