[Ovmsdev] sourcing SIM908 in China

Hi, I'm working on a project using the same SIM908 module as the OVMS, and we're trying to reduce cost. I'm wondering if by chance anyone here knows a good place to look. One of my co-workers says she found a supplier offering the SIM908 for $11.50 for qty 225. Ideally looking for something under $10/ea. Also, if anyone knows a similar SIMCOM module with GSM+GPS but maybe fewer features (e.g. dual-band instead of quad-band?), that could possibly work for us as a lower-cost option. Thanks for any help, Arthur