I think I'd take the embarrassment of having to break the bank tbh.
And just a reminder that he will become club trained if we sign him this summer (hard to exaggerate how valuable that is), and because we have a 20% sell on and a matching clause, we basically get to sign him at a 20% discount.
United/Chelsea/whoever offer £100m and we can get him for £80m. Dortmund can't play us off another club in a bidding war.