Is there a sign-on fee? If there isn't, you can almost afford to eat the final year of his contract, or hope that a Chinese club pays you £5m for him to go away.
We end up with
1) Willian - Aubameyang - Pépé
2) Saka - Nketiah - Nelson
3) Martinelli
Assuming we sell Lacazette. That is quite strong for next year. And then hopefully for 2021-22, one of Saka or Martinelli has moved ahead of Willian.