I have a friend who has one of his Alpha's it has had a fair bit of work done to it,perhaps not quite as much as his own one.I ended up speaking to my old pistolsmith a year or so back and the topic of long barrelled pistols came up during a collective outpouring of frustration at the ban. I am pretty sure (but not certain) that he spoke highly of the Alpha revolvers if I recall correctly as being good quality. I think he was using one himself with good results. His website is The Coach House | Gunsmith gun repairs, firearm repair, shotgun refurbishment and it may be worth having a chat about options as he had some stock in hand. If you have deep pockets then I see Korth do some LBPs that are lovely
And he is still more than a decent shot.

