My experience with any type of small electric air-compressor is
use it or lose it, especially if you live in a place such as Kentucky that has water-laden air.
Any smallish compressor left un-used for a few weeks will soon suffer internal corrosion, the rings and valves will stick; and, when you turn it on, the motor will run, but no air will be compressed.
As I have limited under-hood room left, I have been contemplating a seperate diesel-powered compressor that is electric-start from the truck's batteries, and draws it's fuel from the truck's tanks.
With such a unit, I would also add a decent-sized generator to the mix.
I have a very small water-cooled 4-cylinder diesel still mounted in an old ****** that we use for storage that looks like it might just fit the bill.