Just for fun (and five bucks) I picked up this camera the other day off of ebay. For 5 bucks plus S&H it comes with original box and instruction booklet, supposedly clean and in great shape, and I thought it would be one of those fun, if worthless, things to have on display. I haven't gotten it yet. When I went in to pick up my Pentax ME, where it was getting cleaned up and repaired, I saw an identical 80A behind a display case and told the guy who restored my ME I had one coming for five bucks. He said there is a place that will change out the back of this camera so it can shoot sheet film - (669, I'm guessing, though he did not specify film type). Does this sound like something that's doable? It would be cool if I could make the camera actually work, especially if it didn't cost an arm and a leg. Thoughts, anyone?