He's not even on the radar right now for Liverpool and if you look at his potential and form from last season it's clear that Nunez has the upper hand at the moment especially he's still very young and still has big opportunities.
Liverpool may have several lists of players on the radar of the transfer market this year, but Nunez seems to be the main choice because Liverpool offer a high contract and bonuses for the next five years, the value of the contract offered can cause jealousy for Liverpool main players because salaries can compete with Salah. So even though Nunez rating has increased but I don't think Liverpool need to offer a contract that is too high because I believe Nunez will be proud to be joining the Reds.
They have a long plan with Nunez so they dare to charge a high price. I'm sure Liverpool have reasons for that, the potential he has lured Liverpool to sign him for quite a long time. But surely with that Nunez has to pay with the game he deserves, which can be more convincing Liverpool did not choose him wrong.