I hang my ducks for up to a week and half if the temps stay cool. The problem I run into with them when picking is you tear the skin when the fat underneath starts to firm up. Just have to go slow and be patient.
Don't let your ducks freeze if you intend to keep them whole. Frozen guts are a royal pain to get out.
I'll soak them whole for two days in a salt water bath after that before freezing in bags in fresh water. Freezing in water keeps them from getting freezer burnt.
Unless they are shot up I put up all my ducks whole. I can breast out after thawing if the recipe I want to use calls for that.

