Empire (apex)
Varies by agency, the size of the motorhome, and how much it's costing them to insure you. This is one of those questions where you're better off to call around and ask... they'll give you a base price, then there's the matter of insurance (some places flat rate it for everyone and include it in that base price, though).
Yes, you can travel with the blinds down in an RV mobile home. If you'd rather have them up, you can do that too.