Don't get me wrong, there are a lot of really knowledgable people here, but a lot of castle creations defense too, no matter what the problem.
Personally I think the mount could be better in the Savage Flux, which is why I have my ESC mounted in a Jiffy Box. It's some protection.
I don't like the fan set up, I would prefer to run a BEC powered fan that is on at all times, but that's personal preference.
Perhaps look at how I have chosen to protect my MMM in the same truck.
I also want to shorten the motor wires but not sure if you can on these.
It's not bulletproof, but I think it's safer than what was there, certainly has a barrier around where the motor plugs go into the esc which can get hammered by a flexing shock tower.