It's a real pain the rear.... literally lol
Most likely have to do the same thing on my 01 V8 so I feel his pain. Also there is 2 Canisters not one... You will need the single and dual canisters according to my local ford dealer. Also if your going that far you might want to consider replacing the check valve as well, it would be a real shame if that went bad after the fact. I would say in this case to replace both canisters at minimum cause of the difficulty in changing them.