You have got a very nice and rare car.. you will find it a bit hard to source its body parts. MKIIs body parts are getting rarer and rarer and this particular model ( I guess 77-78) with 4M engine are even more rare one.
Good luck for the restoration... if you need any help, do let me know, i will try my level best to help you.. I just love MKIIs 
For body and other bits start your search from Mardan...