Like HCZ said I personally think we should move on. Brighton are the last club we should be pissing off, we have bought two good players off them recently and they have a bundle of talent still there excluding Caicedo that I am sure we are interested in if they become available.
I always felt with a deal like Caicedo it happens in the Summer and Brighton will milk whatever club wants him. I don't see us paying up to 80 million or whatever it is they want for him now if they do sanction the sale. If anything I wouldn't be surprised if Chelsea are waiting in the wings to offer the 80 or 90 million they want for him on deadline day next week.
These negotiations seem quite similar to Mudryk, we want the player, he wants us (we have basically tapped him up) or Chelsea (they have most likely tapped him up too)....but we aren't prepared to meet the asking price.