Right I've got a Peavey 6505+ Brand new still in box, manual + footswitch and a 2 month old Marshall MF400 cab in very good condition. I really wanna sell these things as i have no use for the cab anymore and the amp was a delivery mistake and they wont take it back after 14 days! So how much do you think i could get for them in £'s (im in the u.k) And where should i sell them? (ebay, freeads?)

Thanks for any advice!