Pagluu brother, you are trying to answer a question by going around it. None of the three verses you qouted mean that these people can only be Ahle-Bait and none else. At present teh question is that if Ahle-Bait are an everlasting guidance like Quran, then how can we seek guidance from them now?
You are asking me many questions without answering anything that i asked of you. I have presented you verses from the Holy Quran in answer to many of your queries. For example i gave you a verse;
[56:79] None shall touch it save the purified ones.
I assumed that you knew that the only ones thoroughly purified and promised to be kept purified by Allah (swt) are none but the Ahlul Bayt (as).
Its fine if you do not believe in the Sunni books of hadith. But we both believe in the Holy book of Allah and we could try to discuss this from the Holy Quran then, Insha Allah. I am a student and perhaps could learn new things from a good discussion from the Holy Quran.