On the subject of cost, these are very very collectible. To get the very best price, the wooden box is necessary, but you have the original plastic box and carboard jacket and this is desirable as well.
As Alex has said, these are able to be fixed and anyone buying this to use would realise that it will need checking. I would not worry about trying them as this would possibly cause damage.
I would not accept less than £500 each and you could easily get more. I would strongly suggest you put them on eBay, do some decent pictures, sell them separately but refer to the fact that there are two and don't end the auction early! I would also allow international bidders and definitely send them fully insured and reflect this in the postage costs. These seem to sell particularly well in the US.