Thanks, guys! Here's some updates. Put it together fast, slow finishing it up.
Bolts have been ground down and magnets added to door. The magnets are mounted on golf tees. A solution to a problem I was happy with, because it worked well, and because I am not a golfer, but happened to have some tees for some unknown reason.
After the board is secured a bit inside, I think I'll call it done.
Oh yeah, I tidied up the wires a bit too, not that you could see before.
And thanks seedy! "Rat mod" is the kinda comment that makes me know I'm doing it right! Ha ha!