It's ridiculous for Conte to sell Osimhen because for me Lukaku is too heavy and he's old, but Conte will always be a controversial coach full of challenges.
I don't know how much Inter Milan will spend on these two players, but Inter Milan always spend a little money but are able to make the players valuable, this they have done several times and are now important pillars of the squad.
Kompany hit the jackpot from Burnley moving to Bayern Munich, I can't judge because he doesn't have much experience as a coach.
Antonio Conte has interested with Romelu Lukaku because both of them working each other at Inter Milan and Conte know well the striker typical needed by selling Victor Osimhen. Chelsea seems not problem for selling Romelu Lukaku than extend his loan clause with AS Roma and get fresh fund for signing new players on next window transfer opening.
Inter Milan reported have been bankrupt and their owner Suning Group made Inter Milan as collateral and is currently under the new ownership of Oaktree Capital after Suning Group failed to pay debts of 395 million euros. I doubt with the new era of Inter Milan owner make them most active for signing top players because the new owner seems spending small fund to sign new players.