Superb thread!
I'm just getting in to Silver Bayonet (late to the party, as ever!), and this thread has been very inspirational.
All of the miniatures look fantastic - I really like the Cu Sith and the Brollachan, really pushing the folkloric (is that even a word?!?) over the gothic. Not that the two can't exist together, but I like the approach of leaning into the perhaps more obscure folklore entities over the more trad-gothic ones.
I also have that Perry Naval Party and they are indeed a pretty much 'ready to go' Silver Bayonet unit.
That blackhouse over in post #82 looks like this one, from Total Battle Miniatures:
https://www.totalbattleminiatures.com/product-page/highland-black-houseI also stumbled on this one from Fogou Models, whilst I was looking:
https://www.fogoumodels.co.uk/product-page/rectangular-stone-blackhouseNot that I'm affiliated with either, mind, just turned them up whilst I was looking for stuff for my own collection.