Elder Packer challenged all Seminary and Institute classes to study the Plan of Salvation EVERY YEAR. Here's the outline Elder Packer gave us.
War in Heaven
First Principles & Ordinances of the Gospel
Faith in the Lord
Gift of the Holy Ghost
Enduring to the End
Life Beyond the Grave
I suggest that you find scriptures to support each concept USING ONLY THE OLD TESTAMENT. Good luck!
"A scripture is not limited to what it meant when it was written... it may lead to current revelation on whatever else the Lord wishes to communicate to us." (Elder Dallin H. Oaks)