Looks good, very clean. Here's a link from radio control zone on posting pics in forums to help you out, although attaching them is fine (sometimes better, bigger image). I like the ESC plate idea, it'll leave you more room to move the battery around if you want to adjust your weight distribution.
Thanks for the link, I'll look that over to figure it out. Yeah I left the battery tray long so I could move the battery front to back for weight distribution. Also I figured with the ESC mounted over the center diff I could cut out the front window and it should get plenty of air flow.