I've been waiting feedback from the PSU designer, but it seems this might falter, as he is quoting around 1000 GBP for a 'full monty' PSU, and not mutch interest in doing something more affordable.

I have done a lot of research and have a design together for something much better than the stock/off-the-shelf LPS available
this would utilize the LT1083 type 3 pin regulator in a tracking pre-regulator arrangement, this is actually very good performance, many orders of magniture better than the current SMPS.

We could run this as a kind of 'open source' /group project.
I don't have the resource or time to make the PCB layout or get the kits produced, but am able to do the design work.

Is there any interest in producing this as a group product?

Main: 861v4, UHD722, 558, Klipschorn, SVS PC13u
second: Tom Evans Eikos, DCB1-pre, DIY Nelson Pass PLH amp, DIY speakers.