Gx680III's are pretty rare these days. I picked up a kit including the 80mm and 135mm lens, body, Back IIIN with cracked plastic lcd cover (lcd is okay) with 120 Insert and four older backs (2 are 120 and 2 are 220). The 80mm was listed as "has small scratch on coating that affects nothing." What I got was missing a 120 insert, all the older backs have dead batteries and the 80mm lens has more than a small scratch, it has multiple minor scuffs. Now the older backs require dismantling and replacement of a soldered in battery. My question is, I paid $1400 shipped, even with the issues, my question is, should I just keep it? I fear putting together something similar would be more expensive, unless I moved down to the orginial Gx680. Thoughts?