I was also going to go Zetec but after I drove my 1.8 CVH Sapphire back across London (sadly I paid more than £160) I thought that it would be a good way to go. As I already have 2 old classic MGs, I'm also under pressure not to spend a fortune building it
Like Adrian and Ash have said, different engine mounts appear to be the main issue but I believe that most of the other running gear is the same as any Pinto Sierra.