Brushless E-maxx decisions

If you guys remember me, I'm the one that had the extended (plastic) chassis Pede with a Lehner 5300 and Mtronik's Genesis Pro ESC.

Well anyway, now I have an E-maxx and I extended the stock chassis using the same method as before. I extended it 1.75 in. so it will now hold 2 8 cell flat packs on it. I'm definately wanting a nice Brushless setup for it, but I don't want anything to insane. What motor would you suggest to normally run off 12-14 cells with the occasional 16 thrown at it? I am wanting a good medium between performance and runtime. Also what is a good economical ESC to control it? And what other parts would I need?

I'm thinking about the Fiegao C 9 XL or 10 XL but I just don't know where to start. I'm pretty sure I will have to regear and add a BEC and maybe heatsinks also.

This is just going to be a fun little bash truck for me, so help me out if you don't care. I know people come on here and keep asking the same questions over and over, but I actually did search. The only problem was I found so many different opinions I was just as lost as when I started.

I've only had this truck for about a week now, but there will be alot more mods to come. Here's a couple pics of it.