Hyperglide was an evolutionary change from Uniglide. It's been a while but I don't think the spline changed, though the mounting system also evolved from threaded 1st sprockets to lockrings.
The issues you have to consider are first whether the freehub body to hub interface matches (these also evolved over the years). then whether the cassette to freehub spline and mounting match. The first is the bigger hurdle because if you find a compatible freehub body, finding the matching cassette shouldn't be hard.
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