Out of print means that many of DIM's drawings are designed by designers outside the company, and DIM's right to use these drawings is limited. If the designer of a drawing no longer authorizes the company to use it, it becomes out of print.
The kit marked with gold, the big picture is big gold, and the small picture is small gold. There is no gold-marked kit, the big picture is Dapu, and the small picture is Xiaopu. As for the difference, it is really unclear. Personally, I feel that the gold group map is more exquisite than the ordinary map, which probably means boutique.