I would worry about the fuel tank thing. It's a known problem on the RC8T. There are bad fuel tanks floating around everywhere. I know, I just raced one this past weekend.
Yeah if you don't take the advice printed all over this website to the losi, you might experience throttle servo issues. I haven't had near the problems I've been hearing about though.
Bottom line is, if you go with the RC8T, which is a good truck, have a fuel tank as a spare at all times, unless you like air bubbles in your fuel line.