I'm sorry but this really is a 'FIRST COME, FIRST SERVED' situation. These lockers are in the alley way between Farrow & Ball and the Oxfam shop in Summertown, opposite M&S. If you want one, you'll have to come and get it ASAP. I have no control, nor can I promise them to anyone as they are outside there.
One locker set has keys. The green one presently has keys. They're both used. The green one is just underneath 6 ft. The brown one is about 5'8".
They are located a short distance into the alley way between Farrow & Ball and the Oxfam shop. You should be able to park a car by the opening of the alleyway and pop the lockers into the car. Having an extra hand will be helpful. Or two people can carry it away.