Your problem is that number two excludes virtually every city outside of the tourist areas, and number 3 excludes all the tourist areas. Better decide which is more important mate, or look somewhere other than Thailand ….
If you own up at border exit, you will cop a 20,000 baht fine and a 5 year ban. If they catch you before you get there, it’s a 20,000 fine, deportation and at least a 10 year ban - you will be jailed for the duration during this process.