oh. we were caught in a very heavy rain during our way down. luckily we managed to board a bus with some other trekker at the carpark area outside the climbing permit office. I think it is not difficult to get bus back KK.. just make sure you don't become carrot head...
anyway i think also depends what time you reach the base. I know someone in our group who reach around 6pm no more bus but they luckily managed to board a school bus back to KK
should be between 20-25RM per person.
about 1.5-2hrs journey.. really concuss in the mini bus