Knocked off the top and bottom tabs and moved screw holes inside. Added some fillets and stuff too.
2 versions - One with a cutout in the center and one without.
Download or remodel in OnShape - https://cad.onshape.com/documents/b151344e7ee2414f88979bb1/w/5dceb40cf09e2b620ef8f917/e/c51ed6f73bd210cc27ea77c2
The author remixed this model.
Added OnShape link