Here's the Pentastar parts rack and pinion install. Used an off-the-shelf rack for a commadore something. I actually reached out to them in 2016 and bought a set of the brackets which are sitting in my barn. One of these days I might look for a rack that will work with it (I'll need a LHD version, of course)..
Here's a FB listing for a place that was selling a modified Kmember in Aus: