mullet
+1y
you can get a regulator from any gas store.. so if you can fill your nitrogen bottle.. you can buy a regulator. You can also find them on ebay.. I believe they are all the same except for one gas.. and i wanna say either argon or ascedline (i know i didn't spell that one right). And you can use any bags w/ nitrogen.. altho i personally wouldn't want to use sleve bags. Slam Specialties are really nice bags, but are stiffer.. Firestones are normal.. and as for valves GC250's will be just fine unless your trying to do something crazy.. then bump up to the 450's. I run SMC's because they are cheaper.. and easier to wire up.
Mike