Part is already in the correct orientation. No supports, no brim. I recommend ASA or ABS. The summer heat is merciless. PETG won't survive.
I made this off of measuring my original part with a caliper.
No more paying like $30 for one of these!
STL, STEP, and F3D all provided. This only took me an hour to make, feel free to use it as you please!
The author marked this model as their own original creation.