the Cheapest price on the internet is GoPro at 415 for the Gast 0523. I know a granger sales person that is getting me the pump and the diffusers at there cost. I do have access for valves and fitting and filters... I�m really not sure about the airlines yet. I may just spend the money on weighted airlines because good non weighted airlines are not cheap either. The last thing I want to do is repair airlines. I will post once I get everything what I ended up with
