I am going to build a high power KYL target stand with 10, 8, 6, 4 and 2 inch x 3/8 targets. For 200 and 300 yards. I am going to build it with 4-5 ft long X 1/2" rerod legs. Will it be heavy enough to keep from tipping over from impact? Or do I have to use 5/8 or 3/4 rerod? Want to use 4-5 ft legs to keep the plates up in the air and easier to score.