Files included: .stl .3mf .step .obj

Here is a link to the on shape document.

https://cad.onshape.com/documents/ef95d9ce07165bb0a5cee4b4/w/0d82b9c99c27a81ea47a88da/e/183644e9f52e23d1df5b314e

I used box supports although I think the tree supports would work better on this model.