Years ago, I replaced the perfectly good (I use that term loosely) Magnatek/Parallax 7345 converter/charger in my Class C. I posted it here, for free, to anyone willing to pick it up or pay for shipping. The moderators allowed it to stay, and an RV.NET user whose old 7345 had died got it just for the price of shipping. I did put in the statement that I hope the moderators allow it since it was free.
(I currently have a Parallax 8355 that I pulled out of my TT for the same reason. I may post it for free just to get it out of my garage.)