All depends on what you need volume and air quality wise
Clean dry air requires more compressor than wet dirty air
Larger tank won’t make up for insufficient cfm at needed pressure.
It will help with clean and dry some if the air gets to cool in the tank some of the water stays in the tank.
Aftercooler helps with air quality as well.
Rotary or screw is the way to go if you need larger volume.
Champion, and Quincy make decent reciprocating compressors, eastwood has a rotary that is rumored to do ok.
Cheap whole unit probably isn’t as good as a good pump for what you have assuming it’s at least a 5 hp
