Can you take a couple courses again at a local college? A lot of times, if you already have a B.A., most states schools (particularly if you're a resident) have very lax admission standards. Go part time with in-state tuition, take two courses, get a couple A's and request LoRs. Not those 300 seminar classes, but something at least slightly analytical with a low enough class size where the prof will learn your name.
LoRs are important and they're not. They're important in the sense where if you just get a very general "He got an A, he must have done alright", this looks poorly. However, I doubt there's much of a difference (in terms of influencing the strength of your application) between a pretty good and an excellent rec.
So, if you can take just a couple of quick classes, it might be worth the investment.