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Short answer: NO
Slightly longer answer: yes there were OSC and ZenCart modules, I believe they shared user details with XOOPS, however if my memory serves me right, they were both very buggy and would take some work to get the problems fixed.
There are a couple of other options, rather limited and not what your asking, perhaps consider:
1). Instant Zero's fine bookshop module, although there are some limitations, as it's really geared to the module name 'Bookshop', it does cost as well, although you need to make enquiries with them about this:
http://xoops.instant-zero.com/modules/news/article.php?storyid=122). There is a module in development, seems rather basic, I personally don't like it's current state, however I do see a lot of potential with this module as it's developed:
http://dev.xoops.org/modules/xfmod/project/?xplaincartThere are of course other options, but I don't have time to delve into those, and I'm not sure on their current development status, ie if they are still being developed.
I hope this is of some help.