Well, as I've not had an offer I think I'll order from Ron on Monday, and perhaps a nest from Oookworks.
Adds perhaps 300g over a minimal groundsheet, but the extra shelter from 50cm draught panels on the outer edges should reduce my need to carry a heavier sleeping bag and may pay for itself weight-wise.
And I have to confess that I've reached a stage in life when I'm less tolerant of sharing my sleeping space with mozzies, midgies, slugs, ticks, moths, mice et al.
I'm still getting what's effectively a 4-5 season shelter for 1k, much lighter than a Scarp with the extra poles.
My sleeping system is under 1k, as is my pack. So the big three will be about 2.6k, which might be heavy for ultra trails but seems pretty workable for my kind of gentle plodding?