I am presuming that you have considered the issues regarding noise and flying debris that comes with dry air chip clearing, so I would say that for the Nomad, you could do with pretty much any small compressor. You will not need large nozzles.
For example: at 2bar (30PSIG) pressure and 1mm dia nozzle, 30C (85F) air will flow about 22l/min (0.75SCFM). A small homeowner compressor for a nail gun will supply that.
Two nozzles of 0.5mm dia will discharge about 11l/min (0.37SCFM)
This is the best I can tell you without knowing more about the nozzles you plan to use.