
It was brutal, but I finally got it. I used Tinker's elite items + translocation idea, with the Den and BURNDAYRAZ. I luckily found Good Glenrick behind double-thick walls, right after walking past IMAWAL. I got myself a ridiculous level spike, then found both bosses beside an Orb of Zot. I kept leveling to the point where I could take one hit from Blahblah, then Zotted and Whupaz'd him. While regen fighting Blahblah, I managed to find the Orb of Lusory, giving me a total of 43% resists. Even with all that, the fight was much closer than I would've liked. I had a good ratio of cursed cows and non-cursed cows, and lots of bloodpools, but it still came down to my last few potions.
What's funny is I played much better in my earlier runs, with worse shops and subdungeons. I think the Orb of Zot made me greedy, and I misjudged how to use my advantage.