I understand that they only pay out for one race but we divide the bucks in a different way, anyway. It seems to me that you spread the money out to both groups. Perhaps take 1st and 2nd money (on our program) and combine them and split that between the first place finishers of both races and so on down the line until all the bucks have been split.
I am sure there is a way to do it. As for needing 5 starters in one or the other race, a one hour guy can be counted in the 3 hour event if necessary to make the 5 minimum and Tage should be fine with doing that.
My thoughts.
Jim