Hi and welcome
Yes enjoy the sleep while you can but also enjoy the planning and bringing home your new puppy
Ive found the cheapest place to get crates (of a decent quality) is ebay, having never used a divider I couldnt comment on whether you can also buy crates pre-installed with dividers, but I assume a seperate one can also be purchased.
There are lots of puppy books out there, one often talked about on here is Ian Dunbar Before and after getting your puppy I believe its called, but you can more often find the information you need either on here or the web anyway.
You can if you wish feed the puppy in his crate, in a way it will make him think its a nice place as there is food in there, I wouldnt however leave food down in it, only at food times. Ive never put food in the crate or water, I use a seperate area as the crate is for sleep only and I dont want any wee or pee in the crate, but its personal preference on how you wish to crate train.
I use zoflora (mixed with water) for wee accidents as its nice and smelly and covers the urine smell well, alot of people use biological washing powder too, dont use bleach as it smells of ammonia which can encourage the pup to urinate.
Lead is again personal preference, Ive just changed over to a slip lead for our pup (12 weeks) as he was pulling on a normal lead/collar and its also easier to get on and off in a hurry.
You can use the collar as soon as you get him home to get him used to it and leave it on if you wish (remove at sleep times if crating) but I found Toby didnt like his and only used it for walks and now Ive taken it away completely.