The Stone Roses - will swap Sunday for Friday ticket or sell Sunday cheap for Friday! ?

Hi there, I am looking to swap my Sunday ticket for one for the Friday - will do a straight swap or will sell my ticket a bit cheaper to someone so they can make a little bit of cash on the transaction! I live in Manchester so can swap with anyone in the area or near. Please contact me during work hours on 0161 838 1975! Thank you!!