Not enough info. Which actors/actresses do you want on the piece? Price can vary with the signatures on it. A fully signed photo by the 6 main actors will run you anywhere from $700-1200. If you add other actors such as Odenkirk, Banks, Esposito, than you're looking in the $1,000-$1,500.00 range, maybe a tad higher depending on the item signed.
Should have mentioned that there are deals out there and you may find one cheaper.