I have a couple thoughts,. One depends on how "broken" it is. If only the glass, suggest looking at having a glass shop replace as that is what we had at one point. Much cheaper----if it works.
But assuming no cheap way out, I'm not finding the model 24 V in the list, so here is the parts catalog and perhaps that will get what you need?
https://catalog3d.winnebagoind.com/menu/Parts.htm
Mirrows are in the "exterior" section and there appears to be Ford or Chevy types???
Good luck with the chase! The small parts can get to be a pain at times!
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!