I want to keep my gate too. It has already been lightened a little though...rust holes!
I should take off the back bumper to see what it weighs, it looks heavy. I am not sure about it. I never really liked it. I need something back there though.
I removed the rear bumper and put a wood piece, I like the looks better and it's much lighter. And yep, DT is getting lighter as it sits (shhhhh... I can hear it rusting) :D