Stroked motor oil levels?

I am going to measure the volume of oil in the pan at the level of the dipstick. For example, If the dipstick low mark is 1.5 inches ,I measure the volume of oil in the pan at that level. Then I will measure the full mark and fill the pan to that level and see what I have. It is a 7 quart pan, supposedly. Does that include the filter as well? We will see. I will do this tonight . If anyone has a stock dipstick for a RB motor, could you measure the full and low levels relative to the stop that rests against the block. Curious what stock levels are.

Now about that windage tray, More research. I have both the windage tray/gasket combo and the rubber gasket, so I could go either way.
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Call Isihira-Johnson about the windage tray and crank scraper.