http://www.amazon.com/Complete-Compr.../dp/098327892X
I haven't read the book, but the authors are highly reputable and successful carpet breeders.
An 8 foot jungle would be a rarity, though certainly possible. I have 3.3 adult jungles and none exceed 6 feet.
A small percent of carpets will simply never accept rats. I'd look for hatchlings that have been started on rat pinks/fuzzy. I've kept a couple dozen assorted carpets over the years and have encountered a handful that never converted. I feed them quail, chicken, guinea pig and rabbit (if they reach that size).
An adult jungle can utilize a small litter pan as a hide. They require no special furnishings, though perches/shelves will definitely be used. However, I don't use them.
Be sure to buy from a reputable dealer. The carpet python world is full of intergrades, most of which have been mixed with coastals in quest of jaguars. Some of these intergrades can be hard to detect. A jungle with coastal blood can be larger than expected.