WOW, awesome and sought after reels, I wouldn't be at all surprised if it wasn't worth in excess of £2000.
It would probably worth your while contacting Antique & Vintage Fishing Tackle & Books, Phone: 01305 778214 or 07913 630459. Email: firstname.lastname@example.org
I sold mine (the MKII) a couple of years back in mint conditon with all paperwork etc for 1600.
I had caught plenty fish with it but just didn't like it for various reasons, one was, it just felt way too fragile for me and if i'm honest it wasn't anything like Witcher reels are cracked up to be.
I'd much prefer the money .