Theoretically the remodel shouldnt impact store payroll at all. It might feel like you're getting extra because the remodel tms will be doing some of the work that would have to be done anyways though.
Get breakout done. If that means you and your style TLs are in the back breaking out at 3PM so be it. It's cliche, but you cant sell from the backroom.
Did ours after close tonight. I have pretty limited signing experience and it was a bit of a pain, but I'm sure you signing guys should have no problem. The VMs of the world on the other hand..
If you're being forced to stay in the building, you're on the clock. As a closing TL I specifically schedule somebody to stay late with me, but if theres other people there I tell them not to punch out.