Solved, can't be done yet in uk

This link talks shows flush fitting - http://www.kitchen-sinks.co.uk/Regin...steel_sink.htm
There is a cut away drawing of flush mounting an integrated kitchen sink showing the clamping system for fixing it to the worktop.
Is this what you are trying to achieve? - or is the problem that you are having trouble finding someone to fit it into a Pfleiderer worktop in particular? It maybe that we are talking different terminologys here - in which case - sorry - i have misunderstood.
You could have a look at http://www.pfleiderer.co.uk/index_01.html also. Perhaps they can help you locate the service you require.

By the way - here is a great link for kitchen worktops - http://www.albatops.co.uk/
Kitchen Worktops and Components On-Line Store