There are two versions of the MCRU item (the other costs £285). Both are made by Longdog Audio who was a member on this site a while back and seemed to be well respected from the postings I found. I got the impression he sold them on the forums before MCRU came onto the scene. Others may chip in on this and give some comment on his work. There is also a website for longdog audio if you do a search.
Mel