For the supports part you might want to bc theres very lil over hang depending how u print it.
i did mine up right with supports came out fine but think itd do better without. do what you think is best!!
the wall mount parts i dont know the size off them for screws but i did a normal i think 20mm screw like the head of it. i going to re model the mount later but it works well for now. i made mine on an ender 3 pro i just sliced it and then welded the parts together.
you should be able to do all in one if you have a bigger printer or taller but slicing it worked for me.
let me know if you need help or want it to be remade and ill do it free!
The author marked this model as their own original creation.