Brushless Recomendation...New to R/C

Greetings to you all. I am buliding an E-maxx and am going to be running the stock tranny and diffs, but I would like to get a good Brushless setup for it. I liked the Novak 6.5 I had in my XXX-T MF1 and I want my E-maxx to move like my stadium truck did. I have and will be running dual Kokam 4800 Li-Po batteries. I am looking to spend $300-350 dollars on the ESC and moter and the setup has to pretty much be dummy proof as I am new to this. I sure would appreciate any input and a point in the right direction / alternatives to the Novak choices (HV 6.5/4.5). I want to achieve about 40-45 MPH at top speed without blowing up the tranny and diffs. Thanks.