I have know idea how much it weighs to be honest. Things I would do different? Given what materials I had to worth with, I really can't think of anything. When I build something like this I usually do it with the least expense I can. I want to build a piece that is well built but I don't want to spend a ton of money on it either. There is one weak link that could have been built better had I the parts on hand. The bearings on the roller are from the gauge wheels of a grey market tiller. They aren't as durable as pillow blocks would have been, but that is what I had on hand. I did drill a hole and mount grease fittings in the bearing housing. To help prevent damage I make wide sweeping turns or raise it up to make a sharp turn. Other than the expense part when I build something from what I have on hand it is kind of like my very own "Junkyard Wars". One thing that is different about mine is that the spikes on the roller are about twice as long as those on a store bought one.