If the PnS is put back in again I want to see it with a high price so it still would let the mechanics do most of the work.
This. Preferably, make the fees for PnS quite high.
Further on, perhaps making it proportionate to a player's cash level would be nice, so that you don't see players who have saved up a bit being able to avoid mechanics 100% of the time.
The mechanic script is not needed for roleplay, true. But I have seen many people use it in exemplary roleplay recently. PnS should be brought back in a way that maintains the job security of mechanics.