If you are a good customer and since the bp is in such bad shape you might be able to talk them out of it(Sometimes on rescues the pet stores don't pay anything for it the old owner just doesn't want it anymore). Or even if they will allow you to get it now and pay later so ou can start to care for it now. Neither of these might work. If you have any friends locally that keep snakes maybe they can get it to save it or get it and sell to you later for the amount. If you can get him and still pay your bills go ahead and do it. But if you can't afford both try the route of finding someone that will get it and take care of it.