1 or 3 cards? Help Needed

SIRAMEDO

Hello everyone:

I'm interested in grading a Roberto Clemente panel from the 1972 Puerto Rican League Sticker Set. This is the same were you can find the famous Mike Schmidt sticker.

My doubts are:
It is 1 or 3 cards for grading cost purposes?
Which service should I use?
Can I use the November special?

Thanks, Siramedo.

http://img106.exs.cx/img106/7987/Clementestickerfront.jpg

http://img106.exs.cx/img106/746/Clementestickerback.jpg

phreakydancin