The seatstays weren't a difficult choice, Winston does a very nice job of those, the fork crown was a choice of two or three (due to tyre size n guards), the Paris Brest looks beefy enough without being too beefy, and it helps that it's also pleasing to the eye.
Very nice! If I ever get a custom bike, I also want (semi?) wrap around seatstays and Paris Brest crown!