Sometimes your two guides will differ. That is fine. Let them know about the differences that you perceive and then work it out. That is part of the learning process. You become the coordinator of your project.
Disagreement is healthy and helpful.
It is not a good idea to wait and give the material to your Second Reader after everything is completed. While this is simple, it deprives you of valuable advice and deprives the reader from working with you. Part of the benefit to faculty is working with different ideas and with you. At times they will have different points of view and make different types of comments. This is an advantage to you.