By the function calls, I think most at least of what you would need for a CR2 exporter is in the scripting SDK (but I don't know enough about scripting or CR2s to be sure). Of course you'd have to create or point to the OBJ file to finish the job, which would be a bit more effort if you were using an item that came in a .daz file (such as the D|S free base content).

If I wanted to get Jesuitical I could point out that the fee for the SDK is for Trolltech (as I recall if you already have a Qt development licence you don't need to pay for the SDK) but of course money paid out is money paid out, regardless of who gets it.

As for the topic of the original post, I've already pointed out there are two free scripts which will get your poses, morph settings and partial material settings from D|S to Poser so it isn't a closed box even now, even without paying for plugins.