I think two items - one to bypass the wait to put the wolf on nest, and one to bypass labor - each on the Mole Market for moonstone prices would be beneficial. I'd say probably 20-25 moonstones for bypass the wait to put the wolf on a nest, and 10-15 moonstones to bypass labor.
It's not impatience that I want this item. It's the fact that I'm utterly abysmal at planning these sorts of things. I struggle a lot with trying to figure out when I need to breed my wolves so the pups are ready to be born at the right time. Having an item that could bypass (or even just shorten) parts of this process would be a relief for me so I wouldn't have to worry about timing something incorrectly and missing whatever deadline I was trying to meet.