The MV-50 can be made into a very good tankless 12v compressor with a little spit and shine. Just removing all the leftover mold flashing over the air filter inlet holes works wonders.
Mine now has 1/4 NPT fittings, and a 80MM fan blowing over the motor and head. I have 10 awg wire going through 45 amp powerpoles with multiple well wired receptacles to choose from. These are easy to open up and fine tune.
I'd like to have a small tank I could fill when desired.
Mine still pumps my airbags upto 100PSI regularly.
I've got a porter cable pancake compressor for woodworking related projects. It too needs loving to perform well, but its pressure regulator is non adjustable with pressure in the tank. Not too hard to work around.
My inverters couldn't power it and I would not carry it around unless for a job. The MV50 is small, and capable.