I'd consider hands to be more important than bipedal mobility.

I work in R&D, supporting a high-tech factory. The factory has already been laid out so that the entire place is accessible for materials being moved around on carts. The worker could be replaced by a cart with hands. If we could solve the hands problem right now, we'd be buying robots by the dozens.

Also, lots of things could be done right now by stationary robots. But at the present level of technology, what we really lack are programmers. Naturally what I'm saying could be overturned tomorrow by AI, so I'm talking in terms of how things work today. I'm actually one of the few people at the site with experience at industrial automation, but it's not part of my job at present.

In a sense, the hands we lack are hands on keyboards.