POE 3.18 Dex Stacking Siege Ballista Mapping Test

First time trying out Siege Ballista build. I'm following the build guide made by Wallach: https://www.pathofexile.com/forum/view-thread/3210813, but play as Champion instead because I want a much tanky character. Made some changes to auras and utility skills to my own preference. Initially planned to play as pathfinder, but it will be harder to get the stun immunity so in the end playing as Champion is better I guess. Even with 50% or even less DPS than Hierophant version, the build still works pretty fine after investing considerate amount of currency. Current brutal restraint timeless jewel only gives about 10% dexterity, the rest of the stats are useless. Capping resists are extremely hard since the belt I crafted ended up with good life and regen but no resists. Level the character with Hollow Palm since this is one of the fastest way to finish the 10 acts in trade league.

Lv83 PoB: https://pastebin.com/BSaS9AfZ Ascendancy: Champion Keystone: Magebane Bandits: Alira Pantheon: Lunaris & Yugul

Edit: Currently still running some quick labs to replace the boot enchant to something better like elemental penetration.