Brushless help

Thanks for making feel so welcomed....I currently own a E-Maxx. I was really into tow tears ago until I got a new job and had to move!! It has been in suspended animation for two years!! The last mag I had was taking about the new Matched 3300's. Man, it funny how much can happen in two years. I just recently got my truck back out and it fired back up with no problem. Brushless systems were just really beginning to become popular when I pack my truck away. Now it seems like wveryone got them!! Mt truck is modified somewhat. Below is a list of the upgrades I have done. Keep in mind this is from two years ago.

Robinson slipper kit
Locked into second gear all first gears removed
Gearing servo removed
Futaba FM radio
Hitec 645 steeering servo
Ti hinges, turbuckles and pillowballs
All traxxas aftermarket internal componets
Pro-line suspension kit (I bought my E-maxx the first year it was out)
Pro-line velocity dish rims and Road rage tires
Traxxas big bore shocks with Trinity springs
Matched Team Orion 3000's (I just picked up some matched 3800 Ib's)
RPM bumpers, skids, bulks
Replaced all of the bushings with bearings


Now I under stand I will probably have to upgrade the idler gears and the drive shafts to run brushless....Any suggestions on other upgrades?