In the USA, the only place to buy FG products is
www.vsmodelsport.com they are the importers of FG products and great people to deal with. At the moment I believe they are also the only place currently selling FG products in the USA, they are trying to get dealers setup throughout the USA so if your LHS wants to become a 1/5 scale dealer give VS a call! Also, if you're willing to pay a little extra, there is
www.advancehobbies.com in Canada which is also very good.