I have completed them (They're in my gallery if you'd like to see them finished) and I never stitch the same design twice.
I have used the backstitch charts to mark off, but the cross stitch charts are unused so you'll be able to mark your progress on this one if you'd like - or re-scan the backstitch ones in black and white - might make them re-usable I should think.
There is enough thread left in the kits to do about a quarter of the design in each kit, So you'll need to find a stockist for Madeira threads or you could always find a Madeira to DMC conversion if you'd like.
(The Craft Department sells Madeira stranded cotton for 40p - HERE)
I don't want anything for these, I'll just be happy to pass them on to someone who might make use of them.
PM me your home address if interested and I'll get them sent your way.
((So sorry the pics aren't very good))
Kits have been stored in a plastic tub and come from a clean smoke-free home.