I'd think it would need some sort of pairs option for it to be truely Ryder Cup, and the only suggestion I can think of for that would be to add VP from seperate games together (A1 20VP beats B1 19VP, and then B2 50VP beats A2 20VP, so team B wins overall)
Otherwise what about a World Cup style. Have players from once country play each other to find a country champion, then have country champions play each other to find World Champ, (possibly allow input from team members during game?)