Interested in doing the cargo boat bit from Huay Sai to Pak Bong. We have 2 Honda Shadow Cruisers with a fair amount of gear. Would the 2 bikes fit into one boat or do you think we would need 2 boats/ And does any one have a ball park figure for the cost of a boat to do that leg of the journey???? Last question. How long does the journey take?????? Thanks , Cheryl.