RE: -=OFFICIAL HPI FIRESTORM THREAD=-
I paid around 35 for the integy set that had five pieces. The good hexes go for 5-10 each and you can get individual ones. I use the losi T-wrench for flywheel nuts. They are about 8 dollars and are common at most hobby shops. For removing a flywheel the best thing to use is a terminal puller. I got one on ebay for 5 dollars shipped. Its used to remove automotive battery terminals (or you can just tap the old one off)
Check out teamstrc.com. There are a whole bunch of new blitz aftermarket parts available that are compatible with the firestorm. HPI released the Blitz ESE that has a bunch of goodies on it and there are a lot of nice parts there as well. A ball differential is coming for it as well!