There's a script out there that checks the ztm and gives a list of possible candidates for the class 0's. Its an old one. Maybe in the Rev's Zoc script pack.

Vader, it uses the 1 warp in backdoor, 6 warps out method. There are numerous versions of those out there. Problem is, if the warps are changed (as was said in the original post) then none of those will work. Otherwise this would be a piece of cake.

Jabezz, you'll need to write this script yourself. It wouldn't be a hard script to write, maybe you can convince someone here to write one for you.

You might be surprised how well it still works.

Those scripts still work if dock is in it's Big Bang location. If the sysop moves dock to a sector with no back doors or to a sector with less than 6 warps, then no dock-finder script will work.