Barcelona are trying to interfere Chelsea's deal to sign Raphinha now. They are rumoured to be ready to offer an amount like 70 million euros to sign him. However I wonder how they will be able to afford Raphinha and Lewandowski both at the same time. Because they will have to pay more than 100 million to sign them both. A team that are having financial issues shouldn't be able to spend this much money. Maybe they are relying on the Frenkie de Jong transfer to Manchester United from which they are likely to get 65 million fee directly.
It's not a problem for Barcelona to bring in Raphinha and Lewandowski, apart from their plans to sell de Jong to Manchester, reportedly they get €267 million from television rights. With this large funds, they were even able to bring in other players besides Raphinha and Lewandowski. moreover like you said they would get €65m selling de Jong. If Barcelona manage to sign Raphinha and Lewandowski, La Liga next season is likely to be even more interesting.