I had the same issue re T-Zero. I've created a script that re-boots the Amiga, sets all necessary assigns, mounts CD0 etc and runs T-Zero quite happily. I can upload it/paste it if you like, and you can mod it for your setup etc.
As for Quake, I wouldn't bother - its acceptable on 060, but crawls on anything less, even on the smallest window size. What executable are using - some are 060 optimised and probably won't run on an 030. The 'original' Clickboom Quake executable used to work on my Blizzard 1230 (with 68882 FPU), but I doubt the more up to date Quake68k will.
DoomAttack and ADoom are pretty good on 030 though if you want an FPS to play on 030, as are Alien Breed 3D and Gloom Deluxe etc.
