Brian: Which came first, the chicken or the egg (i.e. the pipe or the panel)? Can the door on the panel even open?
Regarding the 600a. disco so high from the floor...seen this many times. Certainly the meter/CT can take up a significant amount of premium wall space. It looks like this service has been through several evolutions.
The barrels in front of the gear don't help matters any (unless one has to stand on top to reach the 600a breaker!)