Well in Peterborough, we do have one called Harry Donna who resides in werrington,it's a bit chaotic and he deals only with cash unless over a £10.00p, I do like it in there,he's helped me no-end for parts when I'm in the mood to build some Ham radio antenna's.
And Radio Amateur Rallies are excellent ,but go early RSGB page on the net will tell you where they are,the reason I go early is two fold ,bargains and old transceivers I buy to restore along with loads of parts for sale,
Two it grieves me to say this as a radio ham, some hams need to get out more and others might consider taking a bath/shower before going to public events enough said.All life is at the rallies,and I do like them.