Going to put a vote in for a tour of EG over JL. Or even AS, C&J, G.J.Cleverley, or Foster and Son
AS and C&J might be interesting since they manufacture stuff to different quality standards, so it would be nice to see those differences in the same shop.
Incidentally, while I know shops aren't as interesting as factories - and mid-level shops especially aren't as interesting as a place that makes $1,000 shoes or $5,000 suits - I think it would be good to have someone visit a place and let us know if certain things might be worth buying. There are a number of UK shops that get overlooked on SF, but have been mentioned on LL. It would be good to get more coverage of those places.