I have 100 clothing and gift products I'd like copied to another site. As far as I can tell you'd have to copy and paste these "by hand", using their interface and extracting from our website.
Basically you'd copy images and descriptions from our main site and add them to this other (very SEO respected) community site which allows for store sales space of individual items. The products would go in proper categories.
For each item, the BUY NOW link would direct users to our main site.
I will provide the list of items you will copy over and can show the steps. It's an easy job but a bit tedeous unless you can figure out a more productive way to do it. My guess is one could do it in under a day. If you can assure the link content is SEO friendly that's an extra bonus for you.
PM me if you have additional questions.