Welcome Murray.
There are 4 main hobby shops off base.
Siro - Located in Naha, mostly an on-road touring car shop. Sells Tamiya, Yokomo, Kyosho Mini-Z, Active Hobby, Futaba, and Ko-Propo, plus a bunch of odds and ends like Square, etc. Limited off-road items.
RC Paradise - Located in Naval Kadena, full service shop that sells just about everything.
X-Hobby - Located on Hwy 58 just past Camp Foster going towards Naha. Mostly a wharehouse for Active Hobby Products, but does sell limited items, and I do mean limited. I go there for nitro fuel, as they are usually the only ones on the island that sell Klotz fuel (which I like a little better than the Cosmo sold everywhere else)
T-Slide - Located out Gate 2 on Kadena. Almost exclusively an R/C drift shop. Can order anything though.
Again, welcome.
- Paulie