I sandblasted for years with a low pressure pot system..sure ceramic nozzels for them do eventually wear out, but for the amount and size of stuff you want to sanblast, they should last quite some time....you can use as little as a 2hp compressor or as I did, had several 2 hp compressors linked in tandem with a larger storage tank. Saw one of the low pressure pots advertised the other day and must say the price is very economical......think they were more expensive 20 yrs ago. As far as a blasting medium, I used silica sand, never had any problems with clogging, but as with most sandblasring you must use a good self contained breathing mask to avoid respritory problems!!! Coarse grade silica sand is pretty economical to use too and when I was doing was readily available at a local concrete mix and delivery business. If you are doing just small stuff then maybe a siphon system with a blasting cabinet would be more your need.....Whichever is a faster method as not to use take much of your time away from SMOKIN!!! Hope this helps......Rick