Jea48,
As I posted above, there a pictures of the panel, that should answer some of your questions.
4 AWG wire is not in a conduit, it's the thick white one in the picture, and the bare copper ground is inside of the white insulation, with the black, white and red ones.
The run for the 4 awg is just about 3-4 ft.
3 of the hots appear to be connected to the L leg, and the other two to the R leg (see pictures).
Polarity in the receptacles is fine.
What do you think about ground from the cable connector box?, it's the green insulated wire going into the main panel from the left. (see pictures).