Creating a "Portfolio" of Past Investment Successes?

[Ben Ballinger]

If one wanted to keep track of previous/current investments, the rehab (if applicable), the cash flow (if applicable) and their profits upon sale (if applicable), for the purpose of building credibility with private lenders, does anyone have a good template/ideas for creating this?

Would a simple PDF with a few before/after photos of the property and the most basic numbers be the best? What's the best numbers to include in this kind of thing?