Sorry for the picture dump.
I ended up ditching the mouth gate because I don’t think it will look right with cage bars going all around.
I’ve also offset the hinge so it makes more sense mechanically and added a ring to it. I’ve re-imported the lock and padlock shroud and they fit just right (with a few minor adjustments).
I’ve also toyed with various designs for the ring on top of the cage since it is ment to work for suspensions. A popular vote decided that the last one was the one that made the most sense.