was looking at this and thinking a bit out of the way but its not is it you have got me thinking - with your knowledge of the area if we were going to do a trip in a circle fromm BKK taking in Nakhon Sawan maybe Kanchanaburi and a few others say over a week or maybe a few days more - where would you go / stay and for how long in each place - and would you drive or take the train ?