Someone with machining skills & equipment wanted to machine down strut top spacer

Hi Guys,
 
I am just finishing off my front suspension I need to get the strut top spacer I have machined down 1mm (as per the pics) otherwise the shock will bounce around inside the stut tops.
 
Even though it's only 1mm I want it done properly as if I attack it with the angle grinder I'm sure it won't survive in one piece.
 
Can anyone in Melbourne help me out?  There may be beer in it too.
 
Cheers,
 
Matt
 
 
You can see here how it needs to be ground down to sit flush with the top of the bearing.

Here is the spacer on its own