Replace the compressor with a bigger one, replace the condensor with a bigger one, chop a couple feet out of the middle, charge it with propane & fill the tank with brine!
Step 2: Cutting it down
(oops, no pic)
Step 3: Discard the old condensor
Step 4: The new condesor
From an old window AC unit.
It's much shorter & also has a much larger capacity.
Step 5: Compressor
We added that coil of copper tubing above it to prevent the compressor drawing liquid from the evaporator.
We used the original cap tube, as the chart called for 43" of #1 & we had 60" of #5. I calculated them out to about the same volume. So it should work?
Step 7: Fans
Step 8: From the front
Removed & plugged the valves from the front.
This unit had a hot water supply, too. We removed it.
I'm geusstimating about 22% salt in the brine solution