I use two compressors, plus an extra air tank, to assure I have lots of air, and also so I won't be shut down completely when a compressor wears out.

I usually buy 5-6 HP oiless compressors with 25-35 gallon tanks. You can usually buy them for about $300-$400 each.

I think the standard long board is about 17 inches, which is what the paper is precut for.