Welcome to the board steffenchina...
Sounds like a good idea you have there. I wouldn't have much specific information for you except that there are lots of boats for hire and same same as regards the girls! I would imagine its very doable.
If you are going to Patong check out the Mai Thai Bar on Soi Eric. The owner Nicke and his future wife Ead run this site. They will be only to happy to give you info if you ask.
There are also lots of other board members around who meet up with each other through using this board. I met up with a few good heads on my last trip and had a great laugh and got a lot of priceless info and advice from them.
Have a good one... I am back in june myself. Not in Patong till mid to late July though... I would be up for your plan otherwise...
Steady as she goes...
