For bentley, gallas, livermore, naughton , huddlestone, gomes, khumalo, obika, mason, bryne + Defoe I reckon we'll get around 20m, not a great deal but loads off the wages.
Defoe scored 15 goals this season...english plus 3years more on his contract...i think we will get atleast 10m for him from any midtable club !! But i think important factor is wages here...If we can bring 6 quality players on those places, that will be good for us