We sell a few of the Kwikee steps with just the frame and not with the motor that you already have, but not in the single step variation so the only option we'd have is to replace the entire unit with another Kwikee 28 like what you sent in a picture of like part # LC3747453. view full answer...
We have tankless water heaters but I believe that would be more of a permanent install than you are looking for. If you are interested in a full replacement in that style a Furrion like the part # FR98SR would work great but if you were really wanting something smaller there aren't any options for that. The power consumption of a small electric water heater that would actually function would be too much for RVs. view full answer...