There is a guy who has been to just about every one and has taken lots of pics, he sells them on ebay sometimes.
I found his pics website ages back when trying to find some pics of my car on the 89 Motorfair stand. he had them! and he sent them over for me. a top man. This was the year the M100 came out and the first car, a silver one, was on a turntable. have pics of that too, plus the silver excel that joined them.
On this subject, my work mate was at the 89 motorfair as and a lotus nut then, he sat in my car, the Elan and Excel, his Mrs or his mate or somebody took pics, they were in his loft for ages then he lobbed them, then told me about them when i was selling my silver Excel and buying the Esprit! the nugget! I showed him these, below, and he said, yeah thats it, I was there!
will find the Elan and Excel pics and post em up, but this guys website is out there somewhere. will try and find it again.