I had a Fish and ski a few years back and (same thing) I kept hooking the windshield on my back cast. I took both windshields off and it made the boat a lot more fishable. Did this with an older bass boat at had at another time too.
I would probably get a price from an automotive glass company to replace your glass so I knew how much it would cost. (They can usually cut and fit most flat glass). After I priced it or got is replaced I would remove the windshield and fish. When I was ready to sell the boat, I'd put it back on.
JMO