Thanks for all the replies. I’ve already looked at most of these and they all have something missing/not quite right. I’m a fussy bugger
1. Barbour: I don’t want an oily wax finish.
2. CC was the closest: good fabric, good colour, made in the UK, but no hood. It’s a small thing but I like that zip on the collar and a hood for those light showers.
3. The Fjällrävens don’t work: the Vidda is too similar to my winter Greenland and the Raven green field jacket is too light green.
4. The Hebtroco is quite nice but wool, and the sales pitch makes my eyes hurt with all the tattooed hipsters in ‘normal’ everyday locations.
5. I think I looked at Filson previously but will go back and see.
So you see my problem. Not only am I a fussy bugger, the market doesn’t seem to do my perfect jacket.
Since writing the OP I discovered that Alpha do a more civvy version of the M65 so I’ve ordered an M and an L to see if it works. It’s all cotton but I thought I could NixWax it. But I’ve also since discovered that the zip in the collar is purely aesthetic and there is no hood, so they’ll probably get returned and I’ll start again or give up.
Any more suggestions welcome in the interim