Apart from Kelleher, Collins, Henderson to name three who make up the backbone of the team
Brilliant scouting there, Bournemouth, Palace, even Brighton. Quality brought in and cash made in moving players on is great ( mbueno, the manager, dude at Newcastle, Caicedo, semenyo, eze, guehi probably ). Our star defender hasn't kicked a ball all season!
Interestingly, Villa are 600m over 5 seasons to crack the top 4 without having really sold anyone for huge bucks.
So there's the top 4 vs Europe places costed out in terms of buy to sell vs build.