which surgical operation is best in my brother's case
we know he will need a prosthetic foot

1) do we leave it as is, and try to find a prosthetic?
or
2) do we do some reconstructive surgery? and then build a prosthetic foot?
or
3) do we turn the calcaneus bone in the other direction (in the forward direction), to have better support for him, and then do a prosthetic foot?
or
4) some other option perhaps?

I will upload the scans. He lost his foot in an accident as you can see from the two scans. The doctors told us we have a few hours to decide which operation we choose. Thank you!