Lil Giants. Sure was asleep on that one. Thanks for putting up pictures of your method of locking the gate. I built the lock arms and and then when working on the rest of the linkage remembered that I had a crashed Helli with some very small servos. I pulled one out and it fit right between the box rails, no problem. Needless to say that's how it ended up, servo operated. But thanks guys for posting your ideas.
Rob