I discuss land gear in my thread:
http://www.rcuniverse.com/forum/m_93..._2/key_/tm.htm

But after one hard landing those ply rails were still torn out. I have had to fix about 10 times. I have to keep epoxy in blind nuts onto ply but is weak and fails on hard landings. I do believe putting the doubler on the F-4 (or F-5?) part helped but those rails suck. I do not know how I would do it next time to avoid this terrible design issue.