I designed this in onshape so here is the link:

https://cad.onshape.com/documents/10fa827150d5dfd69ba39bac/w/20de37056bc389cfa1b6dcd9/e/351f4ea80353fdd556637b38

Feel free to tweak!

Recommend 4 top layers, 2 perimters minimum and 25% gyroid infill but just about anything will work.