Thanks everyone. I now know a simple one-box solution doesn’t currently exist within my price range. The Squeezebox Touch comes close, if they were still available, but I’d still need to set-up a NAS drive, and I’m not sure how the Touch, NAS and LMS would work together? The Volumio and Innuos look impressive but was hoping not to have to buy something with an on-board dac when I already have one. Pi’s require more diy than I have time or inclination for. I’ll pick through all the suggestions over the next few days, but if all else fails I can step back from the 'wormhole' for the time being and do what Mike suggests and use a non-networked laptop wirelessly connected to the dac until other options become available.
Linn Axis tt/Akito arm/Nagaoka MP200 or ATVM95/ML carts/Trichord Dino mk3 phono stage/dedicated PSU
Marantz CD6006/Cambridge 650T DAB
Tisbury Mini Passive II pre/Roksan K3 Dac/Roksan K2 integrated used as power amp
Atlas Element Integra Superior inter-connects
Spendor SP1s(1988)/Van-Damme UP-LCOFC HiFi 4mm cable