Marcos Maniacs

Hi

Anyone know a part number for the front discs of a standard '97 
Mantis, or even the measurements. Looks like the dealer (bless 'im) 
may have put some cheap ones on when I had them replaced under 
warranty so can't use mine as a template :(

I am informed they should be Alcon, as only the later GTs & Mantis 
built with uprated brakes requested got the AP setup.

Any help much appreciated!