Just finished a ridiculously epic lucky run in Doubledoom (PQI Cheeky Gnome Tinker).

Both ENDISWAL and BURNDAYRAZ near stairs. First shop free boots. Tricky Mystera was hiding behind the walls. Three shops are: Platemale, Battlemage Ring and (rofl) Orb of Zot.

Bloodpool used to be L4 Warlock blocking my way to the golden subdungeon. Yeah, killing that L1 serpent was too hard, you know, poison and stuff. Unfortunately no IMAWAL, but CYDESTEPP is even better. Here I'm talking to this L9 Warlock, and he begs me not to kill him.

Then I realized I can kick Goo's ass. These two shops to the left are also Midas and Dragon Soul. Vicious luck.

May be I should go VT, but then it would be spoons and other triswords.
Did some math also and it seems like I could kill Goo at level 1, but without Codex, and it was not guaranteed, Tormented Soul could be easily.
Also, here's my previous VHoS Purist Tinker run.

Did it without Platemail or EM. Leveling was pure pain, even with 2 Health Boosts and dagger (but desecrated Taurog helped with early Petition), popcorn subdungeon hepled a lot with i-dont-wanna-die guy, though there was no other way but to use Chaos Avatar during this fight, and Burn Salve after. Then I exploded at the signpost on purpose (my first time) and yay! Got another compression seal (didn't use both) and Schadenfreude (used to fuel BYSSEPS, pretty sure it was necessary). Converted to Dracul exactly at 50 piety (hardly got this), desecrated JJ so got 5 indulgencies (number of my health potions), got Blood Curse and Shield, but no lifesteal, two shots of Tithe, drunk every bloodpool, used two swells and won. Also, there was unreachable room in the middle, so Blah Blah could blink there and survive, I was so afraid of it.
...twelve hours later, lying in bed, I realized that I could use Taurog's shield to kill first boss.
Today I beated VHoS with Vampire.

It was third try, (first with Dragon Shield and second with Dwarven Gauntlets, both seemed impossible) and again I killed Indomitable without damage reducing (started fight at 6 level, because couldn't find this L6 Wraith), though there was Platemale, and even Whurrgarbl, and even blacksmith subdungeon (used Bear Mace on last hits), but I spend my gold on Badge to finish L8 Wraith, lacked 1 point of damage (then used Badge at some point to get inventory slot, and then at some another point SUDDENLY noticed that I have no Death Protection - wasted this somehow and did not even notice). But then Platemale was definately the only choice to spend Indomitable's cash.