Amiga 2000 Gotek drive case and cover that fits in the A2000 drive bay, no spacer needed. It's designed for the OLED and Rotary Encoder. It may work without the Encoder but I'm not sure if the LED display will fit where the OLED goes.

Glue the back(Case) to the front(Cover), install your Gotek and then install in in the A2000. It will float - No need to use the drive bay. If you don't have the A2000 with screw holes in the front of your Amiga case, then you can print my A2000 Front Cover.