You dont have the mk1 xr2 engine then?? To be honest i think you may struggle to get one for a reasonable price and they are a very very old engne. Would be easier to buy a 1.6 cvh and go from there. They are in loads of escorts and fiesta's in carb form. Even the mk3 had them in the 1.6s. slip a cam in it and descent filter and an exhaust and your away.
http://www.ebay.co.uk/itm/Ford-Escor...item4ac5305f17

http://www.ebay.co.uk/itm/Ford-1-6-C...item27cfb81b90