Nice find Duratrax!
I agree, that motor will get you moving in a hurry. The ESC is low budget, but it serves it's purpose. Check eBay for some good quality ESC's. I got a GT7 here on RCTech for $65, and another guy from TPR sent me here to look for another one, which I bought for $60. Both prices include shipping...so you can find some really good deals. Just search the feedback forum to make sure the guys are for real before you send them any money, you wouldn't want to get burned. This holds especially true for used electronic's. They can be extra finicky, so you want to make sure that the guy you're buying from is honest and true to his word. Not to mention when something does go wrong, it's nice to know that the person you bought the stuff from has got your back.
