I wasn't actively looking to sell it, but I'm not attached to it either. I'd certainly consider selling it with or without the engine.
If you're looking for just a roller, and want to save a few bucks, I could see doing that.
If you want to keep it like it is, and don't mind adding in the price of a lighted HS40, I'd consider selling the whole bike.
You might want to look into shipping costs. I've never tried shipping a mini before.
Joe