Thought I'd post this if its of help to anyone..
Tools Needed - Grinder & file
So here's one mount...
With one of the spacers lined up you can see which bit needs notching out...
Marked out then in with grinder...
Do the same on the other side and a little bit of finishing and it all fits together nicely...
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...
The spacer kit itself can be obtained from wwww.chrisastleymotorsport.co.uk
Simps.