Well my original idea was a e-revo chassis and battery doors, cut the battery compartments out of the chassis. But if this is going on a savage why not try this.
http://cgi.ebay.com/NEW-FLUX-SAVAGE-...lenotsupported
RC-Monster RC8T 1515 2.5D/MMM/5s RC-M 4500mah
SC10 MMPro 13.5T 2s NeuEnery 5000mah
RC18T Mamba 25/5400kv 2s lipo + 6s NiMh