Muscle for manhandling household items in & out of storage

Our household effects are stored in a self-storage facility located near Albany. We want to downsize our household by moving some items from the current storage unit to an empty unit nearby where buyers can view and collect items. Later, all remaining items will need to be re-stacked into just one unit. Most items are heavy, so we'll need extra muscle to move them. The work will be part-time between mid-December 2017 and mid-January 2018.