I have model number WF 9865 and the product is WFCO converter 65 amp with output of 13.6 VAC from a Sundance 5th wheel .I believe I have found a reasonably priced one however, I have been told those are standard ordinary junk converters and there are better ones to replace them with. I would like to know what those would be and what pricing I am looking at. I would like to find a vendor that actually rebuilds these better than default specs.