Custom controller? I could do the same thing with any other third party controller and some LED's.
That said, I think it's cool that they're auctioning it for charity. I respect Kojima and what he did for the Metal Gear franchise. If I was a millionaire like the rest of dfwstangs, I'd blow money just to have it. But with my shitty salary, HELL no.
I'll wait until I win the lotto or get a FEMA check, whichever comes first.
Whining about someone disclosing their salary on a message forum usually leads to said whiner being a broke dick. If you don't like it, go elsewhere.