Yea I know the feeling ,Lucky for me it it only 30 km round trip .
Not much paperwork,Just fill in the form and Sign it then go to the SSO
It will be best if you have a Person ,a Thai speaker with you to explain everything If needed
SSO here isn't very good with the English Language and No Dutch.
Takes about an Half our for us if they not to busy .
Signed, Stamped ,,,Free, no charge,,,
Then send the form back to holland , Ours goes to SVB in Utrecht.
Good Luck. ????