Here are a few items I have either ordered or have alreadycome in for the project.

http://www3.towerhobbies.com/cgi-bin...?&I=LXPZ87&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXLL23&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXLL23&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXLL23&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXLL23&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXCXJ6&P=7

http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWNX:IT

I need to figure out what I am going to use for a motor mount for the Mach 427. I also want to get a set of Jaco foam tires to help put the power to the ground. gearing it is going to be a challenge too. I would like to get a metal spur the only metal spur that I know of for the RC10GT is RRP but I need something smaller than 65T. Integy makes a bunch of metal spurs for different cars that I will probably try to fabricate to fit properly.

here is a 34T gear that is made for a revo but I may be able to get it to fit on the GT.
http://www3.towerhobbies.com/cgi-bin...?&I=LXMWJ1&P=7
and I would use this 22T CB to go with the spur. http://www3.towerhobbies.com/cgi-bin...?&I=LXRJT6&P=7
That combo would give me really sick top end and should be managable on the lower end.