I just did the math on how much grading a whole set would cost at $5 a card.
Almost 4000
Unless you found the one person that just had to have the nicest 86 set out there I think getting the grading fee back would be very tough. I'm not even sure you'd get halfway there.
Now the blue stripe cards and the ones with only one color on the back....Those might do a bit better.
Although Krukcards did at one point sell a couple 3200ct boxes full of blank and wrong backs which went cheap.
Steve B