Thought I'd post this if its of help to anyone..
Tools Needed - Grinder & file
So here's one mount...
http://img.photobucket.com/albums/v3.../01-12-076.jpg
With one of the spacers lined up you can see which bit needs notching out...
http://img.photobucket.com/albums/v3.../01-12-077.jpg
http://img.photobucket.com/albums/v3.../01-12-078.jpg
Marked out then in with grinder...
http://img.photobucket.com/albums/v3.../01-12-079.jpg
http://img.photobucket.com/albums/v3...01-12-0710.jpg
http://img.photobucket.com/albums/v3...01-12-0711.jpg
Do the same on the other side and a little bit of finishing and it all fits together nicely...
http://img.photobucket.com/albums/v3...01-12-0712.jpg
http://img.photobucket.com/albums/v3...01-12-0713.jpg
http://img.photobucket.com/albums/v3...01-12-0714.jpg
Its also a good idea to weld in an extra plate across the top of the mount (making sure you check for clearance) as the sri/gte/gsi mounts had this...
http://img.photobucket.com/albums/v3...hanical/28.jpg
The spacer kit itself can be obtained from wwww.chrisastleymotorsport.co.uk
Simps.