This evening I had the skins laying down and had the doors taped closed. I wanted to toy with some ideas about what the door magnets should connect to in order to stay closed.
I dropped the L bracket and noticed it was firmly attached to the magnet.
So I clamped the L bracket into place, removed the tape holding the door...and sure enough, there's enough pull to hold the door snug.
Why I'll be!
So, I ran with that idea, clamped 4 L brackets into place and used some JB Weld to bond them in place. Nothing fancy is really needed...just enough to hold the door snug, yet able to be opened too.