For custom builds, I usually resort to standoffs or double sided foam tape. This 3D printed solution simplifies that step for me by giving a clean place to mount my electronics.
Another part that bothers me is needing screws to mount the circuit board so the part was designed to use these plastic push rivets instead:
The dimensions are correct, but I’m more than willing to print the brackets for you no-charge if you’re in the US. Shapeways and these 3D printing services are WAY overpriced. $10 for 2 black brackets + tax + shipping? That’s insane! It’s a 40 minute print + $0.30 of plastic. Let’s build stuff together instead