At your gear level it should be technically possible, and no problem when you have learned to do the encounter mechanics. DHT and MoS are easy for 5 paladins yeah.
I've done DHT level 9 (getting close to a 100% dmg increase there) at around 860-863ish. These 2 instances don't have any complicated boss mechanics which are hard to deal with as a boxer. Last boss in MoS took me a while to learn to not fall down with slaves into the holes. Dresaron in DHT you might want to use steeds to move out of the falling rocks asap, or blow a cooldown. But that's about it.