I would just replace the glass with sheet metal, that way they won't break, but you'll still be able to open them, oe even better, clear plastic!

yes...thats what I'm thinking....solid sheet metal..it would kinda have that boxy look...I dont think the plastic windows are a good idea...too cheesy looking

Im thinking about just welding them solid so they dont open......a few hits on the trail and the window brackets are fubared anyways