Wow, lots of questions
Quick answers…
There's a comprehensive article on childrens pythons in the recent Reptiles magazine with the pic of the corn snake on the front—I think it was by the A1pythons folks. Check your pet store.
There's also a short book that I have found at the bean farm.
It sounds to me like your snake is a bit young for breeding yet!
From my experience you don't need to do much other than put them together. Mine have just been goin' at it again recently, the male is off his feed.
Don't rush to feed your hatchlings, they're a bit difficult to get started but for the most part braining FT pinkies and a bit of assisted feeding will get them started. I still have a couple hold-outs from our last batch...