I'm very interested in such a project. Is there some online lectures, books or other resources wher you could learn to build a robot like this on a good level (both mechanical and electronics)?

Just curious if it can be learned online or you rather need to join a company to get the basics.

PS: I'm asking because for example in Software that was a really amazing exprience, to learn in a team. Although I had a good background. Don't think the knowledge can be learned from books or from some tutorials.