Well, if golem works but we can't golem into KC chains, let's see what we can do. To start:
hand: golem, watchtower, 3 market squares
deck: 8 tunnels, feodum, 2 rebuilds (in that order)
play golem, discard 8 tunnels and feodum, hit double rebuild (8 gold from tunnels) play rebuild 1, name tunnel. shuffle with feodum on bottom, discard tunnels again (8 gold), hit feodum. trash feodum (3 silver), discard market squares (3 gold) gain feodum. play rebuild 2, name tunnel. shuffle with feodum on bottom, discard tunnels again (8 gold), trash feodum (3 silver) gain feodum, trash with watchtower (3 silver) Total of 27 gold and 9 silver, for 36.