Having said which:
Our next door neighbor in the early 1990's bought an Army Surplus "motorbike in a box".
A brand new, un-assembled, 1939 BSA British Army dispatch bike.
It took him a couple of months to put it together, but it was a thing of green beauty once done
Some do still offer items like the Armstrong (no connection...) m/bikes
1. Blanchards on the A1079 Hull Road, between Market Weighton & York
I've been there on a few occasions
Clothing too!
They once had a
Centaur!!
https://pablanchard.co.uk/
2. THIS is a good site, both physically, & on the web
Its name (address) indicates what it actually was
http://www.ljacksonandco.com/
They have some lovely equipment, like the Oshkosh MBT tractor units, & the MAN 8x8 recovery vehicles
It was the Bloodhouse surface - air missile defence site for RAF Finningley (home at that time, of a V-bomber squadron)
If you look at the aerial photos, it shows the dispersal points/missile launch-pads
3. There's also
https://crouchmilitarysales.co.uk/ which are part of Crouch Recovery, who some of you may have seen on the roads, or in the TV programme
'Trucking Hell'
4. Years ago there used to be a surplus dealer, near Hoghton Towers (towards Preston), that had a lovely collection of 101FC's for sale
I still want one of those
I forget the name