overlapping print on transparent vinyl

The seam will show as a dark line when illuminated, if you butt it together it will separate over time.

 

I would butt it together and run edge sealer over where they meet. Same as how I handle perf.

 

If you can design it in a way for that seam to look natural that would be best.

 

Where they butt, have a 1/2" overlap with no printing to one side. Put the first piece down without the overlap, then put the clear part over 1/2" of the printed one and weh-lah, it's overlapped without any real noticeable seam.

 

Put the two options to the customer with the potential issues and let them make the decision

 

How detailed is the print? Does it cover the entire area? If not you may be able to make set the panels so it overlaps where there is the least amount of print.