Lots of useful parts and kits for VESC controller builds, some to be used with 3d printed flowglider thing files. This includes the lid and gasket kit for the 3d printable flowglider controller box for Little FOCer v3 VESC controller. This is a popular and relatively easy to assemble VESC controller box option, designed to fit OEM parts.
Flowglider printable things can be found here - Search Thingiverse - Thingiverse