Repair or replace AC on 1974 Tradewind?

[peregrines]

Hi, I have a 1974 25 ft Tradewind. Last winter the original air conditioner was damaged due to snow load on a carport. The repair is covered by insurance. The air conditioner still seems to run fine but the shroud is damaged. Our dilema is should we completely replace the entire AC which is what our local RV repair places want to do or should we just buy a new top & bottom shroud for the original AC? Being that the original one is 35 years old would it be prudent to just replace it in case something goes wrong with it in the next little while? Our original fridge just went and that was a big expense. As we live in BC, Canada the cost for the shroud including shipping from Inland RV is about the same as a new penguin replacement AC. Our AC is hooked up to a thermostat. If we do replace it what would be the replacement Model # to buy? I keep reading about drip pans and drain tubes. Do we need a drip pan and would our unit already have a drain tube? The second issue is the opening hardware on the front vent/fan was damaged at the same time as the shroud and the vent doesn't close properly now. The fan still works fine. Is it possible to get replacement hardware for the original vent/fan or should we just replace it with a new fantastic fan? Would appreciate any help & suggestions as we need to get on with this repair. Thanks