If you haven't bought that cab yet, how about building your own for about $300?
I also have a 2360, and I'm working on a cab for winter right now. I borrowed some ideas for a PVC cab that I saw on these forums and adapted them to the BX. Along the way I think I solved some of the problems inherent with using PVC as a building material, such as structural strength, finding a durable way to hang the vinyl, and (the hardest part) hanging hinges for the door. Lexan for the front and rear window cost me $40, probably about $85 - 100 in tubing and fittings, $35 for 4 yards of clear vinyl, $50 in plastic ABS sheeting, $45 in rivets, $15 for paint, $15 - 20 for weather stripping and sealer. Of course there was a learning curve so I spent a little more in parts and pieces I didn't use along the way, but when all is said and done I think this cab will be just as good (if not better) than any pre-fab soft cab you can buy, for a lot less money. In terms of labor it does take some time and patience, but if you're on a budget it might be worth it. I'll be posting more on this project in the forums once it's complete.