Brad:
I would never spend that kind of money for a cart. I built my own using a 10 cubic ft dump cart. I changed the height of the draw bar and added large caster wheels to it instead of the normal ones that come with it. Then for the hard part I had to figure out how to mount it solid to the frame.
The turbo comes off the deck as you know and then I added a piece of flex hose to connect to the cart.
For the top I made it out of 3/4 PVC pipe and a bunch of fittings and covered it with and old camping tent that was ripped. So noe I have the cover and the cover is vented with the aide of the screens in the tent.
Bob
Cost: Appx, $75.00 plust the cart a few years ago.