@IIl****
you are incorrect :/ They DO sell year-long, multi-entry Non-B visas at the thai consulate in Penang BUT you have to be listed as a director of the company.
Teachers are only gonna get 90 day single entry Non-B's,
Also buying a re-entry permit at the immigration office doesn't ADD any more time to your 90 day stamp, all it does is let you leave and come back to get stamped in for the same expiration date.