May be wrong, but sometime in the distant past I seem to recall some mention on the Board of the Baan Rim Nam Guesthouse on Kho Chang. I have the website link buried deep in my 'Favourites' ( http://iamkohchang.com/Accommodation/our_place.htm ) but haven't returned there in ages.
Now I'm just poking around for some nices places for 3 or 4 day get-a-ways in early 2008 and stumbled across this place again. The write-up on the website sounds inviting (only 3 rooms on stilits stuck out over an ocean inlet), the price is reasonable, and it's most definitely off the beaten track ~ the ocean beach is a 15 minute walk through the jungle, or, a 5 minute canoe ride.
We'd probably try out the Baan Rim Nam in a spontaneous heart beat anyway, but was wondering if anyone has some first-hand knowledge.
Cheers ...