For those who are not aware, Facebook Marketplace is a great resource to buy and sell just about anything used, anywhere in Thailand (or the world for that matter).  Unbelievable number of listings for just about anything you can imagine, compared with BahtSold or any other online classified site I've found.  You can filter your search geographically down to just 10km, filter price range, and the search engine (English input) is pretty good at finding exactly what you are looking for.  Most listings seem to be written in Thai, but a translate button provides a decent translation to English.

 

Just thought I'd share for what it's worth.

 

Buyer beware though. Got my wife to over some stuff for me that was right .....................!