I would not personally go for it. If I were able to go against every initial instinct and buy them, they would be in quarantine for a good amount of time. I would, in that case, actually look to keep them in someone else's home. No offense, but I would really have to question where your head is at if you bought them, knowing that they've not had the best care for at least a month(I would wager longer if babies just started dying off) while knowing that you can't properly quarantine. I'd really hate to see a thread a few months down the road that all your snakes are getting sick and you can't figure out why...I'd feel for your situation, but would not feel bad for you.
I'm not saying don't buy them...I'm saying it just does not sound like a wise move on your part if you buy them and cannot quarantine them.