See, when you say "we", that includes me in my perspective. For me, the Bible as a whole is absolutely not necessary for the Islamic theology. Absolutely not necessary. So I dont need to know what Jesus actually said for the theology of Islam. The theology of Islam is codified in the Qur'an.
It is you who needs the Bible because your whole theology is based on the Bible, the Tipitaka, the Hindu scripture, etc, etc, etc and is culminated in the Bahai scripture be it the Qayoom al asma, AL Kithab al Akdhas, or any other bahai scripture.
So I hope you understand that I dont need these for the theology I need.