Matt75
I'd def go for all 2ltr running gear inc struts especially if you have plans for a Zetec in the future. Lowered springs are cheap and 2ltr struts are much stronger.
Cheers,
Matt
Matt in a MK1 you would need to lower the spring around 3" to get the same height as Capri struts. This causes a few problems- The springs will not be captive. And the shock absorber valves will be destroyed when the suspension bottoms out.