The gas chamber at Auschwitz was reconstructed as a memorial after the Russians tore down the original one. There are many pictures and accounts by survivors, American, Russian, and German soldiers of what happened there--much more numerous than your few documents. Were those films of the survivors being liberated by troops just skinny actors?
I always run into such interesting lies with people like you. It is even worse that trying to convince a human caused global warming denier that human caused global warming is a reality. Because I can present you with evidence that you can see with your own eyes. Yet it makes no difference.
The other interesting lie I heard about the "gas chamber" at Auschwitz is that the SS blew up the original one. So the Russians rebuilt it. Which ever lies you choose to believe, I have a couple pictures of reality for you. One is of the roof of the "gas chamber" at Auschwitz. It shows the vents through which Zyklon B was supposedly dropped. The other is a picture of one of those vents in the ceiling from inside the "gas chamber." You can see that it was chiseled and cut into the ceiling through what appears to be reinforced concrete. Now if the Nazis had built the building for such a purpose, or if it was rebuilt by the Russians, (As you said) Don't you suppose it would have been a whole hell of a lot easier to just form the roof with those vent holes in it to begin with?
For these pictures, you can't sanely deny them. In this regard, how about being the first to admit that I was right about anything I said. Or would that make you too much of an "anti-semite."
Next, as far as most of the jews are concerned, they are LIARS! Their religion even tells them to tell lies to the goyim. As for the Russians, who cares about what they had to say. They did FAR worse to their own people. As for the Germans, it is interesting what torture can get some people to say. As for the Americans or others, they didn't see those camps until near the end of the war. By that time, things had gotten pretty bad in the jewish internment camps. That was from the German infrastructure that supplied those camps getting the shit bombed out of them by the allies.
Next, one of the documents I showed (maybe both) were by The International Red Cross. They aren't so easy to dismiss. As for the "skinny actors," of course there was a lack of food in those camps near the end of the war. That along with things like typhus outbreals is what caused the roughly 280,000 jews who actually died to die. No jews were gassed. And if you want to see skinny, I will show you a picture of what some of the Russians looked like that the Russian jews did to them. Click on it and take a close look.