With all due respect, Dale Stephens and Lewis Dunk aren't particularly players with the ability and calibre of Cucurella.
Your business model is great - it brings in promising players who *may* have had their sights set on playing higher in the league but guarantees them playing time as well as the opportunity to not stand in their way should a 'better' move present itself down the line. No doubt Cucurella will see playing for us as a move that will further his career (again, with all due respect) and will be a bit pissed off if Bloom prices him out of it.
The whole carry on that Bloom is a king in the market is a bit much IMO. Transfers, in their reality, are simple - the selling club sets a fee and the buying club meets it in some way or another or realises that they're taking the piss and negotiate down. Fine. But the fee that's set by the selling club isn't purely based on how much of a tough negotiator the guy in charge of the club is, it's purely relative to the context.
The context here being that we don't speak to a club unless we have the go-ahead from the player which in-turn guarantees that Cucurella's head has been turned already. Bloom will know that and won't want an unhappy player in the squad and also, again, won't want his business model of bringing in promising players to be disrupted. Essentially, an offer he 'can't turn down' doesn't necessarily mean that it's going to be a mega £50m+ bid but one that's relative to the situation.
I think we'll pay through the nose for him because we need a left back and he obviously has the right playing style (Barca academy and grown under Potter) for us and Brighton deserve a higher fee for 'taking a risk' on him but I can't see it being a stupid amount.