You'll meet a trillion people in Ton Sai when you're there. Just head to eat at Mama Chicken and introduce yourself to people. Jungle Huts or Passok is a good place to stay to meet climbers. Bring your draws and rope, its worth it to be able to climb way more. You can mail it home afterwards.
Hi, I will be in Thailand at the beginning of January. Probably going to Tonsai first. I'm looking forward to trip of a life time. Maybe I can message you to see if your in the vasinity. As Adam said the place is crawling with potential partners, with ropes.
I've been getting stellar advice! I'm bringing all my gear, and plan on traveling around with it (ending my trip in the Railey area probably from Jan. 9ish th-16th). Otherwise I'll be finding other areas to climb, but keeping it open to ideas when I get there. Email me if you interested in climbing, and thanks for the advice!