I’ve just uploaded the Anguttara in Thai. This completes the four nikayas in Thai. If I get the chance, I will add the important KN texts, but I don’t have plans to add the Vinaya and Abhidhamma at this stage.
The Thai edition we use, which we sourced from http://etipitaka.com/, is the Siam Rath edition. The digital text is very problematic, lacking any form of markup whatsoever. Even distinguishing paragraphs is difficult. Fortunately we have some Thai volunteers who are working to fix up these detail problems.