I'm not sure of the manufacturer, but it's definitely modified and maybe a home build from various parts. It's a core aerator as those are spoons, not spikes. The actual "spoon-wheels" appear to be from a Ryan, Olathe, or other manufacturer. However, the T-posts aren't used by any manufacturer as raw material. The low mounted lift cylinder is either a post manufacture "fix" or a poor design. That's just asking for a damaged cylinder. All that being said, if the spoons are in good condition or you can at least determine if replacements are available and the $ is right I would buy it and fix what needed to be fixed. The independently mounted "spoon wheels", assuming they still pivot, are a nice feature. It should follow the terrain and that's important, especially since it's 8' wide.