3.3 SCFM. You'll find almost all of the compressors and tools listed have no CFM rating posted - which kind of defeats the purpose, since you need to know the CFM rating before using the tool with your compressor!

The compressor can be special ordered in-store using the model number MAC700. I hope this helps.

The range of 18ga nails is 5/8 to 2 inches. Hope this helps.

The nails available at Prime Fasteners are a little narrower than the Porter Cable nails at Home Depot. I find the narrower nails jam more frequently too. I've never had an issue getting nails for the nailer.

Virtually ANY compressor will run any tool. The important aspect to consider is the "lag time" required to refill the compressor's tank to a point it will be useable for the next application of the tool. I have used a 12v tire inflator slaved to a 10 gallon tank to operate a framing nailer and autobody sander - just to prove a point. It took FOREVER to fill the tank, and the tire inflator was smouldering when I turned it off. This compressor runs my framing nailer, but ONLY if I give it time to "catch it's breath" after rapidly firing off 15-20 nails. If I'm having a lazy day, all is good - but if I need production, I use a larger compressor capable of pumping larger volumes of air (higher Cubic Feet per Minute - CFM). Your best bet, is to compare the CFM requirements of all the air tools you wish to use, and buy a compressor that matches the highest CFM rated tool. But I guess my answer is yes... it will work. LOL!