I want to breed my rabbit and i want to start a rabbitry but i need all of this in the answer:

# how much will it cost?
# how to choose a doe?
# when to breed them?
# where to put it and what supplies do u put in there?



Just any more information that u can give to me in detail

Sorry this is a little late...
I am going to breed rabbits soon myself. I've done a lot of research. Now to answer your questions...
"how much will it cost"- well it depends how much you want to spend. you have to have seperate cages, or hutches, for each rabbit. Does can live together in larger cages, but bucks will fight with other bucks if not spayed. A female must have room that is 28" by 30" or more, if she is to have a litter. So that will cost at least $40 for a cage for the doe and buck. Then you have to buy food, water bottles, bedding, and extra food and bedding for when the doe is pregnant. That's about it for supplies. Costs depend on where you buy the supplies.
"how to choose a doe" Try to find one with a good pedigree, that is not inbred, and is the same breed as the buck. You should NOT mix breed rabbits, or inbreed them. Colors don't really matter...
"when to breed them?" You can breed them early, depending on size. Small-7 months. Medium-8 months. Large-10 months. (size of the rabbit) Try to breed them before they're 12 months for healthier rabbits. It takes 31 days for a litter to arrive. When you give away the babies at 6-8 weeks old, you can breed her again. The buck must be kept at a room temperature at all times, or else the litter may be affected. The buck can breed 1 time every day. (NOTE: You must continuesly breed the doe after breeding her once, to prevent cancer. Spay her if you will not breed her again. She can breed until she is about 4 years, or until the babies are not 'healthy' anymore.)
"where to put it and what to put in it" Not sure what you mean... The cage or hutch? In a warm place, seperate cages/hutches. Put bedding, water, food, and toys in the cage/hutch.
Any more questions, please ask. (I am not sure if you have already started to breed rabbits, have you?) Please respond