suggestions
Firstly it is possible that TAG in this operation will manage the aircraft operations, but crew will be supplied by owner.
They might think it saves management and recruitment costs.
I am sure some one in TAG London is monitoring the situation, they are wide awake 24/7.
Many owners crew the aircraft themselves, and farm out the management. It does cause complications, and often does not actually save money in the long run. Pilots like to have the protection of a global company to protect them.
Very common in ME, well UAE anyway.
The Right to work in EU/UK is very important. Even if FAA and M registration.
I might apply...glf