honestly it's just really cool they made a kit version of this. like, arrma doesn't have kits of anything let alone the cheapest car they make. this could be a really cool project for a father and son getting into the hobby. models are cool and all but they only look good on a shelf
The grey T handle hexes are from Harbor Freight, the blue handle hexes are from a company called "Extreme RC Precision", I tried to grab the link for you but the website is dead. I have a link in my description for a pretty decent toolkit that has most of what you'd ever need in normal tinkering.
Every screw that went into the body. For the servo all 4 screws got stripped and I had to hammer in a bigger hex to get the screws to tighten. I'm currently installing the shock tower and all 4 screws are stripped. I've resorted hammering in a bigger hex and using that to screw in everything