Make the station Zlevel accessible from the derelict one.

[Clarks]

Nein! Nein! Nein!

So, objection number one (and only) is that you want to use the other zlevel as your lazy body dump.
If you space a dead guy, they'll gib on the first wall they hit. There won't be anything left for revival.
If you throw a guy without a spacesuit, they'll be dead before they recover from the stun, and they won't be bouncing back to the station.
If you throw somebody in a spacesuit, coming back is not hard, it just tedious. There's a few miniputts, a station-shuttle and an almost assembled teleporter. Nothing is going to change drastically.

On the other hand, we can have chases that don't stop when somebody moves off the edge (by lag, or mistake, or because they are cowards).
And maybe we can get rid of the code that respawns the nuke disk if it moves off the station zlevel - limiting that to the admin zlevel if at all- and make pinpointers recognize that the disk is on another level.