I’ve decided to change crank length so no longer have use for these. They can be bought on line for around £15.
Shimano DuraAce 7900 Cranks
Shimano Charger - Di2 power cable
Quarq Bicycle Cycle DUB 110 BCD Shimano DFOUR Road Power Meter / BB Not Included
Shimano Caliper Brake Recessed Back Nut 105 Tiagra Ultegra DuraAce Sora Claris