I have already studied the books of Ethelbert Bullinger, Charles Welch, Stuart Allen, and Oscar Baker. They are all amazing and really astounding!
The books of J. Eustace Mills such as "All Truth," "New Testament Ministries," and "His Workmanship" are also great addition to your PDF library if you will make them available online.
But I don't have a copy of his writings entitled "Acts 28:28: Before and After," "The Given Righteousness," and "Unity." I do hope that you will make them available for free download.
Here's my website: http://www.sciencephilosophyreligion.com/
My YouTube Channel: https://www.youtube.com/thebibleformula
Here's my PDF library of Stuart Allen: http://www.saglit.com/simplicity.html
God bless you always and your ministry!