Does anyone have an idea how much it would cost for a full re trim on an 07 up to autobiography standard

Love my tdv8 and want to upgrade but not liking the V6 as a new option.

If I trade mine against a late V8 I will get hammered   SDV8 vogue SE.
Corris grey and ivory leather + most of the toys.
Limited edition RRS model number 0001
Gone TDV8 RR Sport. Never to be forgotten.

Wife has an i8 BMW