Agreed.@gawithhoggarth is a member here and would know if they do factory tours. Maybe she'll answer you.
"Lakeland" is a term adopted by pipe smokers, reflecting the location of GH and SG in the Lake District, to refer to their floral perfumed style of tobacco. I don't think GH or SG ever use the term themselves. Not everything GH and SG make is in that style, but what a speaker means precisely by "Lakeland" is up to that speaker. There are no longer other makers of that style in the UK and Ireland. The only other existing British or Irish manufacturer is Germain's, in the Channel Islands, which does not make that style.
I'm told that HU Sissinghurst and Elwood Flake No. 2, both made in Germany by Dan Tobacco, are in the GH & SG floral style but I've yet to crack my tin of Sissinghurst and need to order some Elwood.
Condor is in that style but supposedly the new Polish production is changed.
There are a number of American made blends that I know of that are perfumed, though they are not facsimiles of GH and SG. They are Mixture 79 (which is no longer as floral as it used to be), Peretti No Name, and Uhle 255 (mildly floral). GH and SGs tend to be flakes or plugs. The American blends are either ribbon or cube cut burleys.
Why can't you get the Gawiths? I do think of Condor as akin to the GH and SG florals, though supposedly new Polish made Condor is no longer its former self. Current day St. Bruno is excellent but you'd be hard pressed to taste any floral in it.
I’ll have a look at some of your recommendations though.
Thank you. ??