i made a whirling assault witchhunter with maybe a mirror or two worth of gear, stacking armour for defense. Easily clears "fubgun" temple, but probably can't carry anything past 2p parties.
https://poe.ninja/poe2/profile/fafaedras-0334/character/PatrisGUN
why witchhunter? Zealous inquisition is cool. Zealous inquisition is EXTRA cool with AoE scaling. Also sorcery ward is OP. With everything up, I have a hitpool of 1600 + 5000 sorcery ward, defended with 16k armour and I never die.
For maps, you can spec into the nodes close to vaal pact for movement speed, didn't find it necessary since I used this build for temple mostly
YMMV with lower-budget version, but should be fine. I can see ST being a weak point at lower gear levels.
EDIT: can adjust this to a vipercap version for less damage, but more tankiness and move speed.
Can also do this on titan, but you need to invest into life on titan, otherwise the armour will not be enough.
Have not tried evasion stacking on witchhunter, it might feel even better