[squarefoot]

The Unitree Go1 seems the most promising among the affordable ones.

https://www.unitree.com/en/go1

https://www.youtube.com/watch?v=xdfmhWQyp_8

[nextworddev]

Would you know whether it’s feasible for hobbyists to make one of these at home by assembling components

[nulld3v]

Kind of, see: https://odri.discourse.group/

It is indeed pricey though, IIRC the cost of a Boston Dynamics Spot-like robot came down to around $6-7k. There is still room to drive the price down though.

[NalNezumi]

If you're interested in making one by yourself, you should check out Josh Piper[1]

[1] https://jpieper.com/2020/11/09/mjbots-november-2020-update/

[Teever]

Probably, but not at the price point of $2700.

It would probably be $25k-$50k and 1-3 years of development time depending on your skill set.