I wish you all the luck, but to play a little devils advocate...
I understand the issue of doubling up on the printing plates. There are two of each, but each one was stamped as a 1/1 which should authenticate that it is 'unique'. Well, I put to you, that despite the look of the plate being similar, each one is unique and has it's own minor imperfections and wear. If UD advertised that there would only be 4 of each printed and there were 8 printed, that's one thing, but to say the doubles are not unique is fundamentally incorrect.
On a personal note, I don't consider printing plates as cards, even if they are packaged as such. They're printing plates.
I also question a common thought that I read in a lot of threads in that UD is obligated to destroy product that isn't inserted or sold, or waste material from the printing process. It doesn't make sense to me from a business front why you would destroy inventory and assets. I understand the collectors side and expectations, but for better or worse, that's not what governs the hobby.
Again, good luck with your undertaking, and I hope you can make something positive happen for the hobbyists!
Cory