Ok....

Impulsive: First off, dump the 550 motors. They are only good using the 14.4v system. They will run but you will get TONS of runtime and no power. With the SR, try (to start) a pair of stock motors. You will see a huge power increase over the 550's. Up your motors from there. An 'inside source' from Novak said the SR WILL handle pretty fast motors (his recommendation no lower than 13's) and 12 cells, but be careful of the gearing. It will fizzle if you overdo it.

Headlight kit. Ummm, well, I don't know. You could try a AA setup, using the 4-AA receiver pack setup. ???? Just don't know on this one....

Camber compression. Sorry, that's the design on this truck. There is nothing you can do with the stock truck to fix that. Now, on the other hand, the new Pro-Line suspension has the correct geometry built in to fix that problem. Try picking one of these up....

Shock oil: Depends on what yer gonna do with it. I run 80wt with AE Red springs. I will be changing this setup this season to 60-70 weight and using a DUAL TC spring setup. This will allow a progressive suspension setup....I'll let ya know how it works!!!

Modena's suggestion is actually the better one. I run a dual ESC setup with 2 8x2's and 18 cells. It's, ummm, plenty fast...