I have a Kubota
B7500 from the late 90's and bought it without a loader. I almost bought a Woods loader for it, but ended up buying a Westendorf loader (
Front-End Tractor Loaders by Westendorf: Shade Canopy, Snow Plow, Hay Equipment) and am very happy with it. They are out of Iowa.
I don't know if it would have made a difference, but the Woods loader only had one curl cylinder in the center. The Westendorf had two. Between that and a couple of hundred dollars cheaper, I went with the Westendorf.
At the last minute, I also bought a forklift attachment and use it much more that I ever thought I would. Previously with my older Kubota, I just made do with using the bucket to move things. With the forklift, I can pick up pallets, and have a heavy metal platform with straps to keep it from tipping. I am in the process of putting a safety chain around to to pick my wife up to paint the chimney.
Later, I ordered their retrofit quick attachment kits. Not as happy with that. $900 to buy and ship. It was supposed to be bolt on and it isn't, unless you have a much larger bucket. $1,100 more to get it adapted and welded on. I do like it, but would not have bothered if I had known it would be $2,000. If you buy from Westendorf, buy it already installed. I talked to a service guy and he told me they don't make it for my tractor, without welding, but the sales person didn't tell me that. I will say that the quick attach is VERY heavy duty and could work on a much larger bucket than I have.
With Westendorf, they have fairly standard sets of loaders, and then are able to produce the custom fittings to adapt the loader to many different tractors. It fit perfectly, although the local vendor cross threaded the fitting into my hydraulic pump. Not as happy with the dealer as I am with the loaded itself. Good Luck