Local mobile contractors usually charge about $10-$12 per linear foot for boats and RVs. Probably be easier and with better results to let a professional wrap it.
I have over 20 satellite dishes, and I use Clearsat covers. I have used them for over 20 years, I live in Colorado, and snow is a problem once in a while.
I put them on all my dishes.
Channelmaster 3.0 is $325. Patriot 3.1 is $325. Prodelin 3.7 is $470. Shipping is extra but not bad. I purchase directly from the manufacturer in Nevada. Very pleased with these covers. I think they are 15 mil. I still remove snow with a broom when it gets deep or slushy, but with these covers it is a lot easier.
I don't use a cover but before the storm I move my dish to the far west of the arc so it is standing almost straight up. Then none of the snow sticks to it.