I’ve seen various estimates.
If memory serves, The MOGAMBO GURU http://www.dailyreckoning.com/Writers/MogamboGuru.html
estimated it would be worth over $20k an ounce. I can’t find the piece where he did the calculation.....but the archives are well worth reading for information.
I can see why somebody who holds a lot of gold, undoubtedly like Fekete, would think this is a good idea.