@Charlotte ****************
you can get almost 9 months out of an METV if you work the days right on it,
Whether you can get them back-2-back is between you and the thai consulate you're dealing with (seeing as you can only get an METV from the consulate in your home country or where you hold permanent legal residence).
Again, I'd say you're getting your cart before the horse,
How about getting one, comin' here, spending the 9 months you can get out of it and THEN seeing if you can get another one from the consulate in your country 🙂