Hi, I just came across this model, and I'd like to know of anything particular to look out for (design flaws, maintenance issues) when hunting for one and if possible what kind of pricing for a good (no scratches, no damage repaired) unrestored specimen. I tried to search here for info specific to the 100, but the search results came back with a lot of unrelated item, most likely because of the rather generic "100" name. Thanks in advance.