I didn't read the whole thread - got to take the dog out - but there's an Ashdown 8x10 currently for sale on eBay which is literally (and I don't mean that in a teenager's way) just up the road from me - about a mile.
It was used at the monthly Rockden events at The Breaks Manor, Hatfield which is the venue we used for the Herts Bashes.
I believe the seller is Dean Archer who is a contender for one of the nicest fellas on the planet.
https://www.ebay.co.uk/itm/195583476012?mkevt=1&mkpid=0&emsid=e11051.m43.l1123&mkcid=26&ch=osgood&euid=7f9a7f726f0d4a33bc3023422ab30664&bu=43851974399&osub=-1~1&crd=20230209143730&segname=11051