This took surprisingly little time to do; only a couple hours a day for a week or two!
I recycled the belt finding from an old cracked belt of my sisters that would've been thrown out anyway. I figured the best way to stay the pin would be a captive weave, and I just made a long strip of Euro 6-1 and stuck it on. I also bent around a ring to hook any excess belt so it doesn't have to swing free or be tucked in. It's about 34" long.