Thanks for the suggestions, even though it is not sagging as much as the picture appears, I will make minor changes to make sure things hold up. I picked the boards (at Home Depot) and found the most demise/heaviest ones and believe it or not it is quite sturdy. The steel L brackets helped.
With only a couple of bikes on the rack, it is a great way to clean and do some work on a bike, without having to bend over so much. Also so many of the road bikes do not have kickstands. This was an experiment that worked. I have more than 5 bikes so I think I'm going to try to get down to 5 bikes (some day). Wish me luck on that one. I'm a bike junkie!