Has a TC ever been made of the N64 version of Q1? Any likelihood of it ever happening?

no and no

There was a mod at quakeone.com once IIRC.

Hello! I’m asking here as I don’t know where else to ask this here.
Has anyone ever backed up the Quake 64 Ultra mod from the quakeone.com thread? (http://quakeone.com/forum/quake-mod-releases/finished-works/7798-quake-64-ultra)