You have the right idea. Please take a look at
www.ashanging.com where I am the VP of Business Development. Yes, I am biased. However, we have completed over 20,000 installations and have learned a bit about hanging items from walls and ceilings.
We offer a wide variety of options from which you may select. Some are better for different installations or conform to differing interior decor styles. You may select rods or cables and only a track is permanently mounted above. No damage to your walls, no matter how many times you change the framed objects around - not even tiny holes cause by those objects mentioned in this thread.
We even offer a specialized hook (Utility Hook) in two sizes that would allow you to hang mounted prints, without the need for frames.
Take a look. Give us a call. Order some samples if you must. We are here to help.
Dave