Well, it's not about close, IMO. Margate and Dunbar is usually in stock at The Briary, but may not be by the time you read this. The forum reaches thousands that don't post. But, as a VaPer and Virginia lover, I found Dunbar to be sub-par, IMO. There are many better VaPers. Penzance, eh, it is a very incense-like balkan. You'll just have to explore balkans. I have a few favorites, but others may have even better suggestions. But, none will come close or exact.
Stonehaven, a lightly flavored burley blend, with treacle or caramel. I do like Stonehaven, but the flavor is definitely not very forward. SG Brown Sugar Flake comes close, but even that has gotten hard to find. You may just have to find a lightly aromatic burley.
If I had any of these open, I would send you some, but I hadn't been planning on opening any more of these for a few years.