It is my 1st post so be gentle

I own a 1981 MK1 GT1 in Baikal blue. I love the car and dont think I will ever part with it. I am trying to find out how many GTIs are left in the UK (yes I have looked on the howmanyleft website but that includes mk2s registered in 1981 as well I think??) and what state they are in, ie how may owners, mileages, colour changed, modified or original unmolested examples.
I have found 5 over the last few years and recorded what data was available via their pictures, listings or advert descriptions.
I have spoken to Gordon (GTSI) and he suggested you guys may be able to help.
Many thanks advance (and sorry if I broke any rules)
Mark