I haven't used this mod, but I stumbled across it and I'm really into it!
I understand this is your mod and you ultimately have creative control over it, but I just thought I'd share how I would have made this differently.
1. I would have done the Kingdom of Judah (i.e. southern israel). There exists more historical evidence surrounding the Kingdom of Judah, and the Kingdom of Judah is historically significant. Then again, "Israel" allows use of aspects from modern Israel, so whatever.
2. I would not use David or Solomon, since they seem more like prophets to me. I would have gone with King Josiah, who collected Hebrew Scripture and compiled them during the Deuteronomic Reform, which had massive influence on all Abrahamic religions.
3. I would have tried to include some aspect of the modern political entity as well. Although I oppose several of modern Israel's policies, the kibbutz system and especially their development of drip irrigation is both unique and influential enough to be a good UI/UA/UB/UWhatever
4. I would not choose Jerusalem as the capital. Although Jerusalem has been a significant city in the history of Israel, Jerusalem has been controlled and developed by so many more cultures and political entities other than "Israel"; Jerusalem is so much more than the capital of "Israel". ("Israel" in quotations because more than one possible referent.) I'm also against Mecca being the capital of "Arabia" (i.e. Abbasid Caliphate) for similar reasons. If I had to choose a capital, I'd probably choose Hebron, although admittedly the choice is difficult.