Brutus, you should check out Edmonds technical diving, google it and he has a place in hood canal, fills the gas, pretty much does it all. He runs the police dive team in edmonds, and is a detective for the edmonds police department.
This guy has been around a long time teaching IANTD. you will get a fair shake on everything, class, accomendations, gassfills and where to dive, plus he has other classes so to further in dive industry if you wish.
Adventures down under is a dive shop that ron akesone owns that has been around along time also, he does alot of technical dive charters that seem to run year after year in our state.
Brutus your time and money shall not be wasted with these two IANTD Instructors, there's a reason they have been in the technical dive buissness for more than a decade.
Good luck to you on your narcosis free diving adventure, its kinda nice to be able to tweek you narc level with a little helium, when you go to our many live wrecks that our waters have gennerously given us always rember ther is alot of current that goes with it.
One of my favorites with no real current is the AJ fuller, and a few practice ones in Lk Washington.
Happy Diving