TOYBOX SKR PICO PI ADAPTER

I have a collection of used TOYBOX printers and one somehow had an 8-bit control board in it and a different UI.  I could not get it to print like any other TOYBOX machine, so I decided to put a SKR Pico and some form of Pi in it to run Klipper. I briefly had a MKS Pi in it, but changed to a Raspberry Pi 3A when I found out the SKR Pico can supply it with 5V to run.

I printed it using an Ender 3 Pro, not sure how much smaller of a print bed it would fit onto.