So I have this park bench. It's from a real, actual park. It was brought home on a "honey, we totally need this" basis from a construction project where it was to be scrapped. As you can see, we in fact didn't need it. But you do!
This measures about 40" x 40" x 6 feet long, is made out of real logs and is held together with lag bolts. We got it out of the truck with only 2 people, but you're going to need 3 or so to get it back in unless you're the friend that lives at the gym. It's not new, but it's still plenty sturdy and has a lot of life left in it.
I know this is a pain in the ass to move, so it's free. We brought it here in a short bed Tacoma, so any mid size or larger pickup should be fine.
I might have the tools to take this apart if that's a route you want to take, but it's completely your problem to put it back together.