Basement Dehumidifier Ceiling Install

I’m ready to get a new whole-room dehumidifier up and running in my partially finished basement. All the core materials are already here—about ten feet of flex duct for each side of the unit, mastic, and a pulley-style ceiling hanging kit—so the job is primarily about a clean, safe installation... (Budget: $250 - $750 USD, Jobs: Air Conditioning, Electric Repair, HVAC, Installation, Troubleshooting)