Let's agree to disagree. Yes Real have been stung by failing to land Mbappé or Haaland, but £30m is still £30m.
If Bellingham has given a cast iron guarantee to join them, the solution is quite simple. Extend the contracts of Kroos & Modric for 12 months, with an option of another season, whilst Valverde, Camavinga & Tchouameni continue to develop.
This all hinges on the strength of the guarantees given by Bellingham. From what you're saying, he leaves on a free aged 21 in 2025. I can see Real being quite willing to wait & invest the potential £130m elsewhere...