Revisiting this one again...
the seat rails you bought from Autotechnica... we’re they just the Universal seat slider?
https://www.autotecnica.com.au/product/universal-seat-slider-to-suit-autotecnica-aftermarket-seats/
then bolt the universal slider to the crank adapter rail?
Thanks.
Thats the main aim, looking for something relatively stockish looking, that I can use with a harness at track days.
this seems a good solution.