To me, 8,000 clicks is like 10,000 miles on a car. It doesn't sound like you'll wear that body out doing product photography, either. I'd be curious what lens comes with the body as well. I tend to benchmark the price of a used package vs a good deal on new, where the worries of what might be wrong with it are gone. How demanding are your photographic needs? Do you plan on doing other types of photography? I'm not up on the latest best forums for good advice, but I would expect this one would be good:
https://www.fredmiranda.com/forum/board/45