Rayman,
Figure out how much paint you need and round up to the nearest size container. Mix together the paint from two largest containers and then put the paint back into the cans. Before you use the paint in the second can, mix that can with the next cain (if any). This will even out the color.
Also, if you take more than a year to complete the painting (don't we all), store the unused paint, reducer, and hardener in a refridgerator. It is possible that the chemicals might lose their strength ("potency", "activity", ??) over time, and at warm temperatures.
Tim
