I was thinking of using a low pressure system, not a full pressure system. That way I can build and buy parts.

I was thinking of using a car compresser for blowing up tyres (the heavy duty type for blowing up 4x4's etc) and a buffer tank maybe a dry powder fire extinguisher or tubes rolled up to great a buffer tank. Does anyone know or if anyone still does this method? and any idea who can make a T- joint type of fitting that will thread onto my lower pressure buffer tank (dry powder fire extting?) onto a standard 10mm low pressure (10 bar I think) tube?

Thanks
Billy