For batteries I would recommend looking at the sale Neu is having right now on their 25c stuff. I hope I'm not doing anything against Mike's policies by mentioning that. It's just a discounted price for a while as I understand it. I just picked up a 6s 4300 for $150. A 4s 4300 on their site is going for $109 right now.
So did you win the bid on that 8-T? Looks like a decent deal, but when you're on a budget I would rather get a used truggy and put the money I save towards the motor instead of a new roller. The Losi is a great truggy though.