T3FITZ - Before you spend that kind of money, I would like to share my experience.
I owned a Class A and had nowhere to store it for the first winter. I bought a Tyvek cover that cost around $400. I wrestled the cover the first year and in the spring, when I took it off, I never used it again. Found indoor storage about 60 miles away.
The cover was heavy to lug up the rear ladder one handed. Even tried climbing the rear ladder with a rope and then drag the cover up from the ground by pulling it onto the roof. Then you gingerly carry this rather heavy cover around the vents, the A/C, the antennae, and the fantastic fan vent cover. Then when you are on the front edge of the RV, try to spread the correct end of the cover and lower it down the front. Now slowly spread the cover and work your way to the rear. Then you see that it needs a little re-arranging and try walking on the topside of the cover and not step on some of the items sticking up.
Finally, now at the edge of the rear, slowly climb down the ladder and spread the cover down over the rear all the way to the ground. The whole time climbing down the ladder you are under the cover and can see nothing.
During the winter, the wind, the rain, the snow wanted to get under the cover and lift it off like a hot air balloon. I used heavy stretchy rubber cords to hold it from flying off. It wore the paint off the RV in a couple places.
Next spring, I had to climb up the rear ladder while under the canvas and at the same time trying to pull the cover up to the roof. Now slowly rolling and tumbling the cover forward avoiding all the roof protrusions until you are at the front. Breathing a sigh of relief as you toss it to the ground.
A cover for a Class A might work for your Chevy Kodiak Class C. Having a couple other helper people might have made it a fair fight.
When I sold the RV, the cover went with it free. ;)