Alex, I interpret the RVP reference as Velvia.
If so, I have 5 rolls of 35mm Velvia 50 and also a couple of rolls of 35mm Kodak Ektachome 100VS. In my freezer for quite a few years/but I think less than a decade. I find I am not a huge saturated colour fan so it does not get used by me often. Say $4 per roll?
You would be correct, and consider it a deal. I'll take the Velvia and E100VS.