I'd agree with that, Isak is class, and technically his value would be £150m+ simply as it'd have to be something absurd for us to even think about selling him. From a logical point of view, without the "Not for Sale" tax, looking at his season last year, we bought him for £60m, he spent half the season injured, and scored 10 in 22 in the rest of his games, he also has 5 years left on his contract, so £80m to £90m would probably be market value.
If Caicedo is worth £110m, Bruno is worth £120M at least imo.