when new, factory fuel pressures should be *about* the same (2.7bar-ish) at idle, but depending on your existing fuel systems age, wear and tear, and the fact that you're fitting new but second hand injectors, and a new but second hand ecu from another different car, you "may" have to fiddle a bit. a slight raise to 3 bar will increase throttle response anyway.

use your escort zorst manifold and downpipe, a 2 litre one is routed differently, as the sump is different and the downpipe goes thru the cutout in the sump. look at removing the EGR system while it's all off. another easy extra 10bhp. you can buy plugs, use bolts and loktite, or weld up the holes.

It should fly when done mate, good luck, any problems... HOLLER!