Welcome!
1. People will be all over me but I think that its is not the best choice. They always at some point of their life have feeding problems and go off food. Also pee (liquid) a lot because they are African snake that used to consume water before the dryout. For just a first snake I would recommend dwarf boa (tarahumara, hog island, blood boa - if you have the money or any small island one). No feeding problems usually. Much better personality in my opinion. Grows same size or smaller than ball.
2.i dont think so. They like live because they are live preditors.
3.minimum for what size of snake? How many items you are going to put in there... I would not recommend glass with net top. I would get a cage
4. Every poop I clean them. Fresh water every week
5.yes
6.you feed every week or 10 days but balls can be without food for many months. So you decide but be worned it might screw their feeding later
7.other than the huge ones make a wild guess who I recommend?
8.Brian Barcheks one. But you can be fine with paper towel.
9.yes. Too much sometimes.
10. Basic is fine