You can use the C0˛ bottle, if you don't miind paying all the time for refills !!
ARB maks a couple neat compressors, so does VAIR
I've got the ARB CKM A12HPAC and it's supplied with a bracket to place the compressor between the eng. and brake master cyl.
It was one of the first ops I put in in '08, I also have a Q89 dual, I keep in my trailer