I'll advise you not to go waste that money on getting the multi unless the money is not an issue for you but if it wasn't you wouldn't have started this thread. Just imagine spending all that money to get the 33hrs of multi and within weeks the airlines drop the mins from 100 to 50 multi. I'm not saying it'll happen but I've seen it happen many times before. Just go with whoever gives you an interview and a job offer. Once you have the experience and still want to try the other 2 airlines then apply with them.