Another Prusa Mini sheet holder

There are many sheet holders for Prusa mini, but I couldn't find just what I wanted; Slim holder that fits 2 steel sheets for mini that are also easily accessible and doesn't eat empty space around the holder.

This one is neat, simple, easy to print and very slim. Fits two Prusa Mini steel sheets and installs nicely for example underneath Ikea Lack enclosure. They are always easily accessible and seen which is which. Lower sheet will stay 1cm outer than top one for easy access.

Since I'm also bad at installing stuff at millimeter accuracy, I also included easy sticks that will make the installation easy and will result in exact size. 

Use 4x countersunk screws 3-4mm