[Overdriven]

Looking good so far. You'd be suprised what you can make out of aluminum with basic tools. That plate could be replicated with just a Drill, hacksaw and maybe a file to clean up rough edges. Delrin makes for good practice and mockup, don't know if I'd trust it for mounting the cd and motor though.

Edit: There's a few different bodies in that wheelbase range. FG, MCD, Hurrax are on the higher end of price. Redcat, Duratrax Firehammer, and other clones are about half the price.