Best get yourself registered on this site http://www.seriesoneturbo.co.uk/sear...archid=2185496 and ask there,if a s1 is missing small bits and pieces which you need it will bankrupt you,if the car is cheap I'd advise you to break it and make some money and put it towards a good 1 that someone else has lost a fortune on or 1 that's pretty original,when you consider a dashboard can go for around £1000,parcel shelfs £300 to name but 2 things that will prob be damaged or broken,add in welding,panels (front panels go for up to £500),a respray,the hassle then you are looking at a costly resto.
Just my tuppence worth.