Asalam ul laykum brother Dawud. most of these findings already exist on answering-christianity. You should go visit the page where brothers Idres and Osama, were doing research in regards to the name Ahmad in Dead Sea Scrolls. Regarding name muhammad pbuh, in their bible. It actually, isn't a debatable area, the reason is that Muhammad apparently is also a word in Hebrew that doesn't relate to a person. Which is why allah swt told us that the name "Ahmad" is in the Torah. Also the section regarding Mount Sila and Paran, is a good part to keep. Also i came to conclusion that song of soloman does not mention prophet muhammad pbuh, because in there muhammad pbuh is being used as a word rather than a name, if u try to make it into a name it would just not fit the entire story, there would be gramatical mistakes then. However, Isiah 41, does indeed on multiple accounts mention prophet muhammad pbuh, by prediction of his deeds, prediction of his arrival, prediction of his character which is also confirmed by the scholarly yahudi that became a muslim during prophet muhammad pbuh time and by specific location, since no other prophet other than prophet muhammad pbuh went to these specific locations it can only sum up as that this was a prediction about him.
I also like the fact you showed the hebrew word ahmad translation through a translation site. If this is done by you great job on putting all these work together. If not, please site the reference, thanks, jazakallah kyarum.