I have the apprx 3 gal eas tank from under a 95 Classic (made in Ireland). I want to make an onboard system using a 12v compressor for running air tolls and tire inflation. I have room under the passenger seat or in the engine compartment for the compressor and was going to mount the tank on the outside of the frame. Has anyone else made a similar system that they want to share ? Ideas for cheap compressors ?