I think we will be lucky to get 50m for the three... if they are sold. That would still be a healthy profit and generate some much needed funds . Matthem Pennington may also command a fee but of the other young players will struggle to command a fee.Wildly optimistic this. Lookman's only taker last summer was willing to buy for roughly the £15m-£20m mark and we were more interested in closer to £30m. He hasn't done much to raise his price since.
Onyekuru, let's be generous and say we'd get about £20m-£25m for him based on his links to Bayern Munich and how much they we were willing to pay for Hudson-Odoi.
Vlasic has had a loan spell at CSKA Moscow since his £10m move to Everton and has done okay at best. I can't see many clubs paying much more than that for him now.
So tippy top we'd get for them is £40m-£50m if they each had cash rich buyers lined up (maybe). None of this current squad would go for big money. None of them have done well enough in the past two seasons to warrant a big bid from another club.
Tosun, Schneiderlin,Gueye and Besic are another four that may be sold and could generate up to 60m.
James McCarthy may also have some value but I am not convinced he will be sold.
I think other than those it is largely about getting wages paid by somebody else.