I think the first 2 months back are CRITICAL for him. If he can be effective with limited minutes for 2 months, he'll be ready to go bigger minutes down the stretch with a much higher sense of esteem right when we'll need him most.
Im a huge KMart fan, I hope they take it very slow with him, basically save him for the playoffs. A 100% KMart could take the Nuggets to the Western conference finals and thats all you can ask for with the West being so tough. Be very careful with KMart.