I agree with the people saying new ACM panels are usually the safer route. Reusing old panels sounds cheaper at first, but once you add removal, cleaning, possible film issues, old drill holes, rush timing, and reinstall after hours, the labor risk can get close to or even higher than starting fresh. For a job like this, I would price it with clear options:
Option 1: New panels with print and standard install
Option 2: Reuse existing panels, but with extra labor/risk clearly explained If the customer is already trying to cut the price after approval, I would keep the number firm and take payment upfront. The overnight turnaround alone adds value, because you are protecting their business hours and reducing downtime. At Volt
Signs, we usually explain this type of thing as “saving material does not always save total project cost,” especially when removal, prep, and reinstall time are involved.