You've got two cockerels.
Others have addressed the hen to roo ratio, but you had some questions about fence jumping.
I'd clip wings. Just one wing per bird. Get a sharp scissors and cut the primaries. Stay below the coverts. No blood, and its harmless to your chickens. There are plenty of YouTube videos on how to do it. You'll probably want a helper, someone to keep the bird calm and another to use the scissors.
I'd only clip the wings of the birds who are regularly escaping. If you do have a fox, you'll want to keep wing clipping to a minimum so the others can escape of the fox ever gets into the coop.