I will head from Phuket tomorrow morning to BKK on the F650, then head into Cambodia to Siam Reap on the 8th, do the tour with HC, then continue in Cambo on my own, then head into Laos later on and back at some point.
Have a good trip and also I am looking forward to your trip report (I still owe one from my trip in Cambodia from Feb this year). Small advise; if the roads are very wet stay off the small tracks. I have a F650 Dakar and a XR. The additional 80 kg's of the F650 makes it much more difficult to drag it out of the mud.
Anyway, please let us know how the roads are. I am planning my next trip by end of July.
Enjoy yourself but I think that that will be no problem