I just looked that truck up and saw a yt video. That is a fairly small truck. Smaller than my HoBao Hyper TT but a little bigger than a Dromida 4.18. I'd look at a Hobbywing 35 Amp B2 combo brushless system. It's a great little system for under $100. Oh shoot, looks like they've been discontinued by Hobbywing. But I found one
here new for $67!!