Battery Cover with Linkage Mount for Rattler 1/8 Buggy

This thing is mainly designed to make it possible to use batteries which come with top connectors. It replaces these parts:
https://hobbyking.com/en_us/battery-cover-h-king-rattler-1-8-4wd-buggy.html
https://hobbyking.com/en_us/battery-cover-linkage-mount-h-king-rattler-1-8-4wd-buggy.html
You can still use other types as well.

There are two versions of the cover. Alternate-version is meant to be printed with flexible filament and it will not fit if printed with hard materials.
You can us