Any working loader probably starts at a grand and goes up. Looks nice and solid. I'd be comfy at $1500, but I'd be hesitant to go higher. Does it fit your application, or will you have to modify it? The Deere stuff brings big money...I wouldn't apply the same pricing to an Ark, Danco, Johnson or KwikWay. They are all great loaders, but there are a lot of them and they are not as brad specific. Most are adapted over time to various brands.
If you have it there to take pics of, I'd love to see that pump. The resevoir looks just like the Cessna I have on my Henry built Allis loader.