8811 backhoe

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Hi I have a s250 skid steer and just bought a 8811 backhoe am in need of a mounting kit for my skid steer since bobcat wants 970$ for one I can make one but I need to know what the dimensions are for the 2 brackets it hangs on does anyone have one that can give those measurements or know where I can find them I’ve had no luck finding the info thanks