None of the pitches are super long, so you don’t need tons of gear. Set of nuts, including small wires, cams up to #3 with doubles is really helpful. You don’t need offsets (at least we didn’t). Getting off the belay into the dihedral pitch is kind of a pain, but it can be done without a hook, just use a brass nut or something small to get to the bolt (or a cheater stick). Beautiful route. Enjoy!
Brian is spot on. I did GM a couple months back and cam wise I only used doubles up to a #3 C4 and one #4. Offset cams were helpful but not mandatory. I also used a hook once or twice but only out of convenience. I brought cam hooks but didn't use them.
I did the C1 P2 traverse and found it great. The 5.8 P2 version didn't look appealing.
Second vote for the C1 P2, it's really nice and great practice for dealing with traverses on aid. Go up off the good ledge at the end of pitch one and the climb the obvious traversing crack / flake system. You end up at a hanging belay which is kind of awkward until the leader gets up a bit, but it's much nicer climbing than the 5.8 pitch.