Hello! Are you planning to go Hallow Palm Ice Crash?
I'm currently level 93 as HPIC, and have beaten almost all the pinnacle bosses (save Cortex, but he's next). Taken down 4/6 of the Maven Invites as well. This is the first time I've ever hit the "end" game and am currently looking to finish my last 3 items before trying out ubers (a better chest with the 1% Attack Speed per 25 Sex, a synth increased dex ring, and jewels/clusters). Also am at 24/40 for challenges with close to being 30/40 currently.
There's a few builds you can go: transition to Mathil's Sunder, or Velyna's HPIC guide (the one I used to level up). You'll get a huge boost in DPS and survivability switching to the Replica Perfect Form or going directly to the One with Nothing Jewel for Hallow Palm.
I have some leftover leveling gear (including a 5L Briskwrap) if you are planning to go that route.