So this afternoon I got a lead on a two year old Amish built two (4x40) post GAS powered RO that was never used, and it is just a couple towns over. The guy bought it because his shack was remote, but by the time the next season came around he had moved to a different shack with power. Cost would be a little less than a one post Leader MicRO 1.
Possibly going tomorrow to look at it. Bigger than I need though, and don't plan on expansion.
Hmmmmmmm.