Naturally I can't find the box of extra hinges to send to you when I need to find them

. They were forever breaking in my Endeavor, so I'd invested a bunch of them. Then the coach got totaled

.
Anyways, here's a few sources I'd collected over the years:
https://www.thehardwarehut.com/catal...hp?p_ref=18296
https://tweetys.com/overhead-door-support-hinge.aspx
https://www.rockler.com/overhead-bin-hinge
They go by several different names/numbers and weren't unique to Monaco, just more of a specialty item. I remember seeing prices range from $8 to over $16. Good luck! Oh, one thing I learned is to keep the adjustment screw only as tight as needed, any more and they break sooner.