Hello all,
Well I made it out to the coach for a look-see, to confirm just what will be needed to remove/repair the Battery/Fuel Filter compartment door.  
Russ, I found no screws holding the door frame in place, instead there are 21 rivets, and no electrical for a locking mechanism. 
I expect  there being no electrical locking on that door is the reason I didn't remember encountering any in the past.
Now to what was used to secure the exterior sheet metal to the frame.  I got a big surprise, all that had been used previously was two-sided tape.  Yes, tape!  I could see no indication of any weld or welds having been broke in the past.  In one way I guess that will make my repair or a temporary repair much simpler.   I expect, at least as a temporary fix I will pick up some Lexel at Ace Hardware.   Then when temps get warmer, I can do a more permanent fix.   
Our coach is not a true Beaver, it's a "Beaverco",  Beaver/Monaco.  It began its life in Bend as a Beaver, but was moved over to Coburg for completion by Monaco.   Thus, I am wondering what other shortcuts were used by Monaco to capitalize on the Beaver name?   
Thanks again everyone for the assistance and comments.
Bill