If the pump pulley has ribs it goes clockwise, if its smooth it runs off the back of the belt.
Escort silvertop zetecs have ribs so easy to triangle the belt, Mondeo silvertop zetecs go the other way and need a idle pulley... as do all the blacktops like this:
This is my blacktop installation. No need to change pumps, just run an idler.
With regard to the sump, Escorts have a shorter sump than a Mondeo and I was using a 1.8 Escort zetec in mine unmodified.
LG,
Steve