thanks for the imfo. I decided instead of 3 nights in CUZ Ill do CUZ-MP-CUZ,thusly spending 2 days in MP. I called for a number of tour booklets and it seems this is how they spend the 3 days they are up there. Wont be going to the sacred valley unless I spend 1 day in MP. So 1st day in CUZ(only day to be there-the other Ill get back at night from MP) will be to wander around and get to Sacsayhuman.

as for the departure taxes the only time I got stuck having to pay was LIM-CUZ and LIM-PTY(didnt pay CUZ-LIM,nor in CCS alot of luck, I did the mill run). But this time will have to pay LIM-CUZ,CUZ-LIM,LIM-BOG.