Rise from the dead, my dear little thread!
Despite my prediction that I wouldn't want to run this adventure again, it looks as though I will be doing just that. I am considering making some alterations this time around, however. For one thing, I may give Belak some legendary / lair actions granted to him by the Gulthias Tree. For instance, I might give him a concentration-free barkskin (like the tree thralls get) and/or a concentration-free entangle ability.
Sir Braford will still have to stay close to Belak to use his Protection ability but that's probably OK.
Anyone got any other suggestions on modifying this adventure? Is there anything from any of the more recent 5e books (monsters, mechanics, etc) that you'd be inclined to include? Hit me up!