The one problem I'm having with dwarfs is I cannot get high enough attack
Then use the Orc instead of the dwarf. I had success with both.
I seem to need tri-sword or berserker blade, agnostics collar, tower shield, HALPMEH, and GG+drac up top.
I didn't have trisword or berserker blade or HALPMEH and one of GG or Dracul was missing on the surface in both my successful runs. The only must have
stuff on the surface is agnostic's collar and a god that offers decent boons and piety gain (Taurog is the only wasted alter that offers no worthwhile boons; Binlor, Mystera, and Tikki Tooki are all totally workable on the surface and there's enough piety to facilitate swapping around on the lower levels... though you may have to forgo bloodshield). So long as you can enter the lower level with 100 piety and have agnostic's collar to earn more, it shouldn't matter that you didn't have GG or Dracul on the surface.
My criteria is if I can kill lord gobb potion-less.
You should be able to handle that with only HALPMEH, Dragon Shield, and Bloodshield. A level 10 with decent mana and high resists should cleave through Lord Gobb easily.
PS - It's generally considered good manners to edit your existing posts if you want to add something rather than double-posting in rapid succession.