Call Lon Lundgren @ Mr. Motorhome. He's a dealer in CA and AZ. I'm building a wash for him and he is a very straight forward guy. I am sure that if he can not find what you need he will know someone that can. His office phone is (866) 293-7800 and his cell is (916) 425-2813.
Tell him Danny from Intelligent Wash reffered you.