Ok, here goes nothing.
Just to add a bit of further info
Indonesia certifies that all outbound GTP's are captive born and bred in breeding farms so that is accepted by USFW on recieving them even though there is only one actual breeding farm in indo that produces 800-1000 animals per year and about 25,000 animals per year are imported. Animals represetned as Wc (which is accurate) have indo export paper that says they are CB.
I think 25,000 imports is WAY overexaggerated. Maybe you know something that most of us don't, but I think imports account for a fraction of your stated numbers. I know there are lots of petstores, ,and dealers, and yada yada yada. I know large importers, and sometimes a shipment can be had of 30-40 animals here and there......sometimes 50. But it only happens a couple of times a year. Why.....because they have to be passed off as FB stock with the "proper paperwork".
Biaks tend to be heavily imported because of how easy they are to pluck from the bushes - easy to get a bag full = lots of export anywhere.
True statement. You'll probably find more biaks than all other locales combined.
Generally speaking it is important to be aware that most of the rants about wc animals are brought to you by people that have never had one, same deal on farm rasied. No idea of the expereince of the posters here but having spent literally 2 hours listening to Rob Worell give me a speech on farm raised animals and sudden death he then confessed he'd never actually had the animals - he had "heard". This is typical - I don't disagree with the strong sales pitch for CB but that is what it is.
This is where I'll go along with the "sales pitch". I have had "WC" imports from hatchlings to adults. Of the dozen or so I've had, only 3 are left alive. Most were plagued with "sudden death syndrome" at around 2 years in captivity. Being that I have a strict quarantine standard, my most recent death was from a very nice HIGH WHITE aru that I had for exactly 2 year. This was an adult female with a very aggressive feeding response. Last year, my paradox male, also right at 2 years....SDS.
Luckily, I've had two females, that are now very long term in my care, produce two clutches each for me. Unfortunately, one is now eggbound and went to the vet for treatment today. I have a very nice canary that will hopefully be ready for breeding within a year.
Sudden death is a REAL concern with imports. I could list many instances from REAL, EXPERIENCED keepers and BREEDERS. It is not something made up by breeders to promote sales. I see nothing wrong with the occasional import if you're up to the battle. But nothing is better than true cbb.
Cleaning WC critters is a bit of work - and if you are foolish enough to take it to your local vet and do "whatever" they may think it can cost huge $. You should expect a loss of about 1/3 on average and you'll need to run good worming and fecals ... which is also true no matter where you buy the critter - plenty of usa cbb animals from "known breeders" have parasites on arrival, that is my personal experience.
Again, WC animals can be a bit of work. The the two female I have that are LTC were a piece of cake once they got settled in. As far as vet costs go, it depends on how well you trust the vet. I am very lucky to have the vet I use. He is VERY good and doesn't cost an arm and a leg. He also genuinely cares for the animals' well being.
Parasites can come from feeding live rodents as opposed to frozen.....or from being imported. Live rodents can harbor pinworms, which are a common parasite in reptiles, among other nasty things. If you are getting cbb animals with regular parasite loads, you may want to go to a different source.
When you have GTP's you gotta deal with parasites regardless of source - while a goal in many other herps there is not a program of source and husbandry that will allow you to ignore parasites as an issue.
It's always a good idea to check, but again, check the sourse as well.
And with GTP's the old adage does hold true - the uglier, nastier, and more of a pain in the ass overall a WC animal is the more likely it is to be an incredibly prolific breeder.
Not in my experience.
WC Green Tree Pythons are about equal to delicate monitors in difficullty level on establishing them.
Not all that difficult to establish in my opinion. Just expect unforseen problems to occure. Expect the worst and hope for the best. Or just buy CBB! 
Peace
Brandon Osborne
