I have a pair of Lennon ammo boots. They're very well made. The only downside for me is that I have a prominent navicular bone and they don't offer the range of width fitting that was available in the originals. This means that mine lace up a bit narrow and easily pressure above.
They have improved with a few sessions gardening in them after soaking though.
I've never seen any indication that they would consider making DR boots but they would be the ideal people to do it.