My understanding is they don't allocate stock to a build unless all parts are there. You could get both the CPU and GPU in stock at the same time but...have something else not in stock and your order will be skipped again and everyone else who ordered after you get theirs.
Correct me if I am...
Yes I understand how production line work. It's unlikely that Chinese New year will result in them having a full month of not shipping stock. If anything they would have prepared for it head of time.