Duratrax raze buggy conversion

No update, but a question. I don't have an exact weight on the buggy, but it's definitely heavy compared to something like a Slash roller. I'm thinking the aluminum chassis is probably the worst culprit. I'm curious to hear from others any tips on putting this rig on a diet while still maintaining strength? I was thinking possibly carbon fiber, but I've snapped cf parts in the past before.

Maybe its not even an issue with the power that will be going to this buggy?