Hello, killap.
I would like to report about my experience with Kaga.
I usually play Ironman. Once I die, that's it, the game is over. And, thanks to Kaga, my non-combat builds die 80% of the time before even hitting Klamath. The mod, while having lots of nice content, is nigh unplayable because of that single element.
Let's see, my encounter with him is likely to be the first in the game, which means I am unarmored and low on HP. He has 2 henchmen with him, and each can hit me for 8-12 HP. With average EN, I die in 3-4 hits. If I have low PE, they get 2 turns in a row - I die. If I have low AG, I can't outrun them - I die. If I have low EN, I die even faster. The mod practically enforces overpowered combat builds in order to continue playing.
I was never a fan of Kaga as he was in 1.2, but this is far worse. In 1.2 he was dangerous, but not as lethal. He had hunting rifle when I only had combat knife for a weapon and continued to outclass me until our final encounter. If I couldn't win, I could turn my back and run away, just like him. With the addition of his party of outcasts, you can only run away if you are really lucky.
You wrote that the intention of the mod was to put back into the game things that were intended to be there. For some reason, I do not think that the developers intended to put players against a killing machine on their first random encounter - which is unavoidable, by the way - with the only survival option that involves praying they would miss. A lot. And don't even get me started on his stats. By no means anything that early in the game can have such a ridiculous amout of hitpoins. They basically scream "wasn't supposed to be in vanilla". Players may have complained he was too easy to kill when you have a full party with you (that is impossible to keep alive for long without reloading), but then again, what isn't? For a solo character he is quite tough at 80 HP (I liked the progression of 1.2, or was it 1.1 where he had reasonable HP?), and I can't see a reason why he couldn't be killed the second or third time I meet him (besides, as I already wrote, he outclassed me in 1.2). Right now it feels as if I had an encounter with Horrigan and he ordered his soldiers to fire at me instead of those peasants.
I would like to ask you very much to make this encounter optional in the installer.
I have several suggestions how the encounter might be improved.
1) Make him appear alone for a first couple of encounters - they shouldn't be that deadly. It also helps to sneak away from the encounter.
2) If his men absolutely should appear with him, at least make their sequence lower. And make them spawn farther from the player.
3) Make a diplomatic way out of each encounter.