@Tom *********
, Just want to make it a bit clear.
1. Non-OA: Multiple entry valid for 1 year. stamped in for 365 days (or insurance validity) on every entry with a valid Non-OA.
You apply for this in your home country only. When your last entry stamp is up, you can apply for a 1-year extension inside Thailand. For this extension, you MAY be able to use a 65K baht monthly transfer method if you have 12 months of records with Non-OA entry stamp(s). Better check the local immigration office before jumping in.
2. Non-O (inside Thailand) : No entry (because you are already in Thailand), given the first 90 days stamp immediately.
You apply for this at the local immigration office in Thailand. There is no 65K baht monthly transfer method for this application, nor for the first 1-year application after the initial 90 days. You can use the monthly transfer method for the second or later yearly extension application.