Rear starter is what you want (1.8/2.0 Zetec's are rear starter! lol), as said the sump does not bolt to the box only the block, speedo just needs you to unscrew the speed sender from the box and screw your cable in just like normal (although looking at your picture does it not have a hole and thread on the top of that sender for a normal cable just like an RST that has a trip computer uses?), the speedo drive gear inside the IB5 box is the same as the RST BC box so works just fine