I did this about 10-15 years ago. Everyone on oldholden.com told me it was not possible.

Stuffed if I can remember!! You need to use drum brake bearings and seals and spacers? Disc brake axles.
or was it drum brake axles with disc brake bearings and spacers and seals. and disc brake axle studs.....

Oh its been a while since I did it......

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I know I needed to get the standard vn cables shortened.

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Also the hoses. I think I had to remove the imperial fitting on the brake pipe. and fit a metric one? and re double flare it. As said its been a while.....