You do not have the experience or knowledge to properly breed any snakes, let alone giants. Azure Child gave you some great advice, I suggest you read it multiple times and let it sink in.
For those of us that own and adore the big snakes we cringe every time we read or hear something like this. If you were ready to take on the responsibility of breeding you would already know the answers to your questions, you would be doing your research far far away from Y!A, you would not be keeping your burms in the same enclosure, one of your snakes would not have severe nose-rub, your enclosures would be set up correctly so as to prevent self-injury, you would know to feed in-enclosure and not have to aske such a newbie question, etc etc etc. I remember burm questions like I do monitor ones, and the people who ask them.
If you want a bateater go buy one, do not attempt breeding at this point. You are a new reptile keeper that jumped right in to intermediate and expert species (burms, redtails and a sav). You need to keep your animals alive and healthy for a few years while investing literally hundreds of hours into research prior to even thinking of breeding projects.
The reptile industry/hobby is under a microscope, the big guys are the target of banning/restricting legislation due to irresponsible keepers and breeders. Do not add to the problem.