There are a number of kits to mount Sanden compressors that will work, if you want the compressor less obvious it can be mounted below the alternator, or most kits mount on top of the engine...Personally I would hide the compressor sp the Sixpack remains the focal point the only thing is to do this you need to run a electric fuel pump...There are a few kits shown at the link below

http://www.bouchillonperformance.com/BPEACmountingbrackets.asp