C+ is a factory, in no way affiliated to clean factory. They have made themselves known for a bit of shady marketing. Apparently, explorer 2 models can already be pre-ordered at some TDs. Any td can source you the same watches, so if you're in contact with Li you might as well just ask him about the C+ explorer 2. Wouldn't hold my breath on the movement, though. As said, c+ has done some shady stuff in the past and the quality of the movement needs to be confirmed with real life experience. I'm on the lookout for an explorer 2 myself but will wait first reviews before deciding if I take one or not.
The 3187 movement you mention in your first post is not desirable at all.