I am prepared and would need a minimum of 10 to offer the price of £35 plus shipping, £2.25 in the UK.
These fit all the E30 models and not just the E30 M3. Here are a few pictures of it machined and fitted.
Worn joint

Machined joint

Together

A few coats and you can't see the machining at all. I did not sand down the part either

Test fitted to the car. I did not tighten up the bolts just to show how it sits flush




These would be supplied unpainted too.
I have not tested this in a 'on the road' environment, but as it is an exact copy then there is no reason for it not to work.
Please let me know your thoughts.







