Unfortunately neither of those projects will be too useful to you I think. The bench supply uses an ATX PSU with power broken out to 3v3, 5, 12 and variable posts on the enclosure. A 20x4 character display outputs the current drawn from each... Plus temperature and a clock since it was already over the top.
The power hub on the boat is really a fuse box and power distribution board with a screen. The solar and outboard power are routed through it before the battery and all battery output goes through it also. This gives a simple indication of total charge or discharge of the battery since reset, instantaneous and cumulative moving average for those statistics... And cabin temperature, because I had extra pins