Thanks for all the compliments, but all the inspiration came from you guys. The cab is still a work in progress, using what I learned here and from previously owning a CAT skidsteer. I use the snowblower attachment quite a bit, so a cab and a windshield was a necessity. Believe it or not, the top windows on the doors and the back window are the heat shrink plastic storm window material - cheap and easy. Actually works so well I'm going to leave it on. By the way, the entire cab can be removed with 6 screws. Doors lift off their hinges, requiring no hardware removal, windshield is just taped on with 4 pieces of clear packing tape, although I did try using magnetic tap to hold it to the ROPES but it was not strong enough to hold, hence the cracked windshield.
The heat system is still work in progress also, just made this last weekend. The duct work is actually cardboard taped to a plastic container, held on with bungy cords. The cardboard on the sides was added yesterday, but still too much cold air gets in. Am considering removing the heat shield and replacing with one without the bent over top so the heat from exhaust could go directly up. I also added a toggle switch which bypasses the temp switch for the fan, so I can control when it comes on. In the winter, the fan never comes on by itself.
I will say the articulating tractor has made designing a cab a real challenge, as is the heating system. There is plenty of heat generated by the engine, it has been tough trying to figure out how to get it into the cab. I'm open to any suggestions.