Citation :I would need a postcode to calculate the exact price for each individual order.
However, since you are a group, would you consider receiving the full order on
behalf of the members? In this way you would all save money on shipping.

If this is agreeable, you can tell me the exact number of set or individual books
you require, the full address, and I can give you the cost.
Knowing how much the set and each individual book costs, you would only need to
remove the difference to know your shopping cost and divide it between members.

On Amazon and other retailers, the volumes will be more expensive (30 Euro each),
compare to our website or the Tolkien Society website, but of course you can check
them anyway, to see if it's easier for you to order through them.
The UK price, £20 for the set and £12 for each volume (during the pre-order time),
needs to be converted into Euro, and that can vary slightly according to when the
order is placed. Right now, £20 are roughly 26 Euro for the set.
Once you are ready to make the payment through the website, the payment system will
be in Sterling, which means it will convert the right amount of Euros to pay.