I have had a few responses and have decided to leave the sale open until friday evening and the highest offer will get it at that point. Kind of like an auction. Best of luck everyone.
I have an artist exemption but it only covers art works and not commercial works of any nature and as far as i can remember only up to 8 editions of one piece of work. I also work for press and teaching and all this is taxable. I work from home and gather reciepts for everything, petrol, medical, electricity and phone bills, rent, car tax and insurance, liability insurance etc. its a nightmare but you get used to gathering everything