Yeah, don't worry too much about it.
I think the power priorities don't get exported correctly from Inara, I haven't set the priorities in game like they are shown in Coriolis. I've had that issue with EDSY in the past, too. I didn't bother to check the priorities when exporting last night.
The way I traditionally organize my power groups is like this: I distribute the core functions across 1 and 2. 1 is always the thrusters and FSD, 2 is often the rest. 3 is everything deployeable and / or needed in combat, 4 is all things shields, and 5 is all the stuff I don't need in normal space or only need in SC. It's fine and works for me.
See above.
it works fine and doesn't matter. Edit: If anything, I might be most susceptable to the argument that a C5 Bi-Weave works as well with the added benefit of upping the cargo capacity

.
First, I don't have prismatics, so there's that. Second, ramming is my (in this case) 7th hardpoint, so I've made my peace with always going for optimum raw strength and absolute protection vs. protection through resistances. It's fine either way, and my way helps with the ramming hardpoint. And again, in PvE it doesn't matter, above a certain threshold a ship like this is unkillable either way unless you aggro a whole instance of a dozen or more ships, changing this or that to optimize is basically "funny number goes up (or down)". I don't do PvP, but I am very sure this build is gank proof as in: Fast and robust enough to escape.
Appreciated.