Having another setup built so here is my fully stainless steel CO2 regulator specs:
SS Air Gas Regulator with SS Nipple and Gauges
SS Burkett Solenoid
SS Swagelok Needle Valve - Have 2 but only have it setup as a single right now parts will be included so you can put them both on if wanted.
SS Parker HD Check Valves
SMC quick disconnect hosing fitting
All SS parts and fittings
NO bubble counters
$450 plus shipping and insurance, price is firm!