Hi Mike! Can't answer your specific question, but, if you post it to the Painting section of the Forums you will probably get the answer you're looking for.
If you have a Harbour Freight near you, they have a few cheap compressors with attached 3 gallon tanks that I've heard do a very respectable job.
Hope this helps.
Jim
Main WIP:
On the Bench: Artesania Latina (aka) Artists in the Latrine 1/75 Bluenose II
I keep hitting "escape", but I'm still here.