East China Sea New Song Dynasty: Bringing 800 Tons of Supplies Through the Northern Song Dynasty

If you were given a door to the Northern Song Dynasty, what would you do with it? Reselling antiques? Buy land to store food? Be a rich man? Or should I bring a few guns over there, be granted the title of Marquis and Chancellor, and gain power over the world? Of course, it was to lead the Song Dynasty towards modernization.