So I got my MAP02 to a playable state, this is The Gut:
https://files.catbox.moe/n79ums.wad
It's made for Hideous Destructor. It might work in Doom - I can't guarantee it'll be any good in it though. (I mean same for HD but I made it for that)
Difficulty is - I've not beaten it myself yet, so it may be overtuned. Bring something that kills big things with you - there are drops in the map but you'll probably not want to do a pistol start.