Help with noob stuff

[crawllife14]

Ok i have sort of a bunch of shit gone wrong with my wraith and i would love to clean it all up and use it with more throttle control, and maybe a mix of ultra4 stuff too. Im going to braze a cage based off of a 1:1 that i have, full tube and ill have to make skins to match too but how would i figure out the dimensions? Just divide all the measurements of the tubes by 10? Since its 10th scale lol. And i have a dynamite 60a esc with a 20t axial motor gearing is 93/15. I was driving it and all of a sudden, it shuddered and stopped. Still steers fine but when i turn it on, it should make 2 short beeps and a long one, but instead it only has that pattern in the flash of the esc light and no sound. I think thats all of my problems sorry whoever reads this if it was too long i only have one more very short ?. I want to run brushless in the winter and since i wont be crawling a ton if we get a decent amount of snow, should i run sensor less and what would you recommend i run? Keep in mind that i am 15 and saving for a car, but i do work every day after school for a few hours. Or should i just scratch all those ideas and leave it alone til i have a car?

[Beorn]

For the cage I would do a mockup with pipe cleaners and/or braising rod. When you're building just be very careful about how much weight you're adding and how much you'll be raising the center of gravity of your rig (CG).