Alternate AM8 Layout with Under-Bed Electronics Box

I was in the process of rebuilding my Anet A8 to an AM8, following pheneeny's excellent package, https://www.thingiverse.com/thing:2263216, and another great package by chipg07, https://www.thingiverse.com/thing:2504299, when I decided to make a few alterations. I wanted to move the electronics underneath the print bed, for a more streamlined look, as well as use a Bowden style extrusion system utilizing the extruder and hot-end from a CR10s (spares from my other printer). There are a couple of