I'd say, artificial organs are not the top priority as there are different alternatives. One way would be to genetical engineer microbes to perform the tasks, another would be to have organs which need not necessarily be human do it. A failing organ could be replaced cheaply and the mechanism for preparing the blood need not be as small. That would be the part that I would outsource.

Likewise artificial limbs. My understanding is that there are humanoid robots already available. I'd say that one is covered.

The focus would be neurointerfacing. The first intermediary result would be a way to replace severed neurons. Next comes an artificial spine. And then full simulation of nerve IO. A good question is whether vegetative nerves need to be simulated for "feeling right" or not.