I suggest a timeline where we have a rough level by 21 March at the latest so the remainder of March can be used in glueing the levels together, finishing touches, possibly some style of “level pong” (as in code pong)
I think I can’t stress it enough, that if time or inspiration seems short we can just lower the bar, since the fun is in having made such a thing at all, rather than having made a PRO QUALITY thing, as in a game jam.
( @sorceress I think we agree on making a Doom WAD so avoiding Doom II stuff )