According to equity (at least to my understanding), there can only be 1 ASM earning EMC weeks under the AEA SM. So if you do get 2 EMC ASMs, only 1 would be able to gain EMC weeks under you.
I only work AEA during the summers since I work as a PSM at a ballet company during the regular season. Granted, I am married and use my husband's insurance, but I pay my dues as well as my working dues. It doesn't bother me to only work 1 or 2 Equity shows a year.
We do fight hard to have equity assistants when the shows are big, and it is important to have an assistant that knows what they're doing so that you don't have to train them. Though if you are given an untrained AEA actor as your ASM - use your prep week to get them prepared. When I have a SM intern, a lot of my prep time is spent getting them ready for the challenges that lie ahead. Granted, during the rehearsal process they hit road blocks, but you find (or make) the time to help them learn.
If there isn't anyone in your area, then I agree with Scott - the theater needs to post the notice on different websites and build into their budget the room, board and per diem to hire a non-local AEA ASM. And who knows, maybe there is someone near your area that you are not aware of that is equity.
And, quite frankly, how is getting (1) an EMC ASM, (2) giving an AEA contract to someone who is not ready, or (3) a local AEA Actor any different from each other? To me, all of those seem the same - someone who may not be ready to do the job. If you are considering 2 EMC ASMs, why not give 1 an AEA contract and have the other act as a PA or non-eq ASM? And you/the producer would need to make a judgement call as to who is more ready to get their card.