Please don't take this the wrong way, but even with the "extras" I think you are greatly overestimating the value of each marker.
That said, good luck with the sale. If you reduce the price considerably I'll be happy to take the 'Cocker off your hands.
Please note that I'm not just a "tyre kicker" - if you like, I can point you in the direction of some threads that give a realistic valuation of your markers.
Cook$, I hope that you will not find this insulting towards your friend, as I am genuinely interested in the 'Cocker.