The Skylark ARF I recently got from Hobby-Lobby... I put a whole 5 hours into setting up... Most of that wos fddling around with the control system. (could be don n 3 hours if I hadn't fiddled so much. )

Goldberg's Tiger 60 ARF .. about 4 hours from box to RTF.

Depens on the person a bit on how long it takes every time... I've seen a guy need hours to put a RTF together... slide the wings together, bolt on the strap... connect the aileron pushrod and its EASILLY able to be ready in 15 min or less. [&:] (If some of the RTF's shipped with batteries that were charged and you could depend on it... You could take the unopened box to the field and fly same day you bought them.)