As a warning to others, I ordered a pattern intercooler with the correct part number from Autodoc in Germany however the actual item delivered was only 32mm thick. I got an RMA to return it, however the courier companies were all quoting @£80 due to the huge size of their shipping box. In the end, I cut the box open and wrapped the cardboard around the inner box to get the dimensions down to the £20 bracket. Finally, there was a little song and dance from Autodoc to get a refund rather than an account credit......
In the end, I picked up a used plastic S3 cooler from a guy near me who was listing on ebay. Was £80 including hoses, which was a bit cheaper than most I have seen. Is still waiting to be fitted but that's another story!