Certainly nothing negative TH44: a grand obsession!
And you have some marvelous examples, that's for sure!

Your latest acquisition does however demonstrate the folly of using a back-actioned shotgun as a donor for a howdah pistol project, as discussed in another thread. The lock cannot be curved down into the pistol grip. Your example has the front trigger way too far forward for a quick first shot under pressure, which is when a howdah pistol is actually needed.

If the price was right tho, I would have bought it too!