Akira,
Excellent to hear! I've trained at Sasiprapa Camp a few times, the last of which was last year. Thakooon is great and really looks after you, so be sure to ask him any questions or concerns. Paowarit is amazing, I met him the last few times I was there. Great technical fighter, and lightening quick too! Also one of my favs was Sandej. He's usually really busy, but he's a great character with excellent skill, and pretty high in the Lumpini rankings. I swear, if some of the Japanese fight clubs only looked to Sasiprapa camp for possible K-1 considerations, they'd have an overrun of great fighters haha.
I currently reside in the US, training with a few Sasiprapa guys and others that came from Thailand... the biggest from Sasiprapa being B.M. Sasiprapa who was big back in the 90's. He's really good friends with Thakoon as well. Have you had the chance of doing any fights while you're there? Thakoon is really good at finding opponents at your skill level, so not to worry. How long is your intended stay there?
[edit]: BM should be back in Thailand now, but I'm not sure if he's back at Sasiprapa now or not. I haven't heard from him in a while.
Its so great to hear the experience of someone from the same camp.