Nice bench! We're blessed with lots of space in a rural area, so I cleared the brush and saplings out of a section of woods and now we can shoot across a swale into the side of the next hill out to about 60 yards. I hung some steel plates and made a hanger for old tennis balls as well as lots of perches for soda cans, water bottles, plastic jugs - anything that will hold water. Last evening we shot some styrofoam coffee cups dug out of the trash from our family Easter get-together. When full of water they blow up in spectacular fashion.
I found an old cast iron well pump in a scrap pile and used it as the base for a table. Not as sophisticated as your bench; it just has a square oak top with brackets to clamp rifles for sighting-in. It's sturdy, though. Had to set it in place with tractor and loader.
BTW, it gives me the creeps when I see a video of somebody shooting at targets set up in front of a wooded area on what appears to be fairly level ground. Yikes! My policy is never to send a bullet in a direction where I can't see exactly where it is going into the ground.