Good evening!

One idea =
If you have a workshop,a garage or another place (but the bathroom)

you can store one, you probably can buy a 50 liters , single cylinder compressor for 80£ (100€). Chinese stuff but reliable enough for the kind of work you will ask it.
It comes with hose and connections + some different spare connections in the box.
There is also a regualtor which allows you to adjust the pressure you want.
Myself, I use a plastic clear hose to connect on my engine, and do the break in (1 to 2 bars) , adjustments, or what ever I want.
It allow me to blow the water away after use, blow it dry and inject some oil before storage. Rising the pressure to 7 bars (100psi), I blow dust ,mist & dirt away from the boat.
I also use it for spray paint,inflate kids's summer toys and other ..................and clean my mess on the bench!

It is stored underneath the bench for years and I do not see any reason to change it!

Santa is coming soon and if you have been nice, maybe , he will bring one to you!

......
Regards!
