It's not quite that simple - there's a spacer between the disc and flange too (hence the machined bit to locate it), so the the disc is actually some 20mm (I'm guessing) further away from the flange.
If by mk1 you mean the solid uprated brakes, then yes, it's a standard solid front with the same machining and spacer.
I'm probably not explaining it very well, but I know exactly what I mean