I have bought 3 of them over the years and they are not cheap, probably a little over 5 grand by now with a few options, tax and shipping. My newest one is 2.5 years old on a 2720. My favorite one was a Curtis on a 2305. The doors had a sliding window and the front window was hinged at the top so it would open a few inches.
Take the doors off in the summer and sit in the shade while mowing.