Actually there is NO chance at all that anyone on either a Non-Immigrant Type O-A visa (based on being over 50 and gotten at a thai consulate in your country before you wash up here) OR on a yearly extension of stay (based on being over 50) can get permanent residence status granted.
Unless you legally work here on the correct visa and unbroken chain of extensions, with a work permit for the requisite number of years, paying & filing taxes, you got no way to get it.
That's just how the law is written.