I wouldn't complain about a new air conditioner. I actually called two RV places in the area asking about new units, but they didn't have the specs for the 1984, and they asked me to bring it in. I've already set it on blocks and have it stationary, so that's out of the question. I couldn't find any manufacturing information on the unit itself, but the top cover is still on; the metal grating under the weather cover. I'm just fine with electrical work. Paying someone to charge up a unit after it's installed wouldn't be much of a problem at all.
That would be helpful information.