You would need a cwand to make it fast against golems but a tiered wand would work best against everything else. You’re gonna be utilizing the pierce a lot on your way to the boss since each enemy hit after the first one is basically double or more dps since you’re gonna want to clear all of them anyways. A fulmi is definitely gonna be needed to keep crusades from pushing you into a tight spot. And the robe and ring is completely up to you but I would recommend something for dps since your range and fulmi will usually do for protection.
It should be known that I don’t think the sorc would be the easiest to solo on. It’s just the only one I’ve ran small group cults on and had a pretty easy time with. Not only would a rogue be safer, but it wouldn’t require a ton of potentially hard to get items, and would even be faster for those with experience rushing.