I have telephoned a company in china who do not have the wiring harness.
I have also emailed Leoni electrical at the chinese factory,who manufactured the loom with no success but did get a reply from there uk registered office.
The representative claimed they have not made anything for mg rover since its demise in 2005.
I always thought delphi made this harness (the older type )up until mg rover closed and leoni electrical is on the loom tag,the two i had was showing manufacturing dates dated 2007 and 2008?. I Have had no response.
Leoni are a global company and i presume they are not interested in finding a handful of looms for a item they no longer make and probably cant be bothered to look in there warehouses if there are any left.