The option of a merge would depend on the difficulty of course. I'd have to talk with Bara/Dean/Pat about that after the competition was over to see if it's even possible.
The tricky thing here is that these skins for the GUIC, and their comments, are in a completely different database. In addition to the new site, we are experimenting with a new skins library system on the back-end, so there's no easy porting from here to the old system.
Of course, as others have pointed out, you could just submit your GUIC work to the WC gallery after it's been accepted into the competition. Probably the easiest and fastes solution, but you lose the comments and download counts.