Well, there's also the small matter of the spacesuit and the associated life support equipment.
You noticed that omission too, huh?
Even pressure suits are getting easier to make simply because the growing body of published experience means fewer unknowns. There are certainly many good tailors in China, and I'm sure at least a few of them have learned how to make very good pressure suits. (I wonder if I can buy one in Hong Kong?) Their expense is partly due to exotic materials like PTFE/fiberglass cloth (beta cloth) and metalized Kapton film and partly to all the labor, but I bet the biggest factor is the rather obvious need for some serious quality control.
Every crewed spacecraft has its share of Criticality 1 items (failure results in loss of crew and vehicle; no redundancy) but I can't think of a Criticality 1 item whose failure could kill you more
quickly than a pressure suit and its associated life support system. Even when the life support system in a spacecraft cabin fails, you still have some time to fix the problem. But a pressure suit has maybe 2 cubic feet (50 liters) of unoccupied volume, and that's not much to help maintain pressure against a leak or to dilute CO
2 below the toxic concentration. I don't know how much time an Apollo astronaut would have had to activate his OPS were his PLSS to suddenly expire, but it couldn't have been very long.