I've been today in the record store that provided me 80% of my old Cure collection, back in late eighties. The owner said to me that has a copy of The Blood 7".
In case any of you are interested, you can write to the store here
he said to me that he "listen to offers". He also told me that he sold another one for 300€ at Utrech record fair some months ago. Write him to the store asking for the record. His name is Antonio.
If one's going for around the 300€ mark I'd certainly recommend anyone getting it. eil.com had one on there for £1000 at one point!
Eil has overpriced records. They are always in good shape but it costs you between 2 and 3x the normal price. Better waiting for an opportunity with the right price than buying to eil.