Yeez that's $164 Wow!! Ouch!!
But of course these are very important to fit to stop chassis cracking.
Sits under the ARB bracket, and links it to the bolt that holds the underneath front brace. Stops the flexing.
Should be easy to make, just get under the car and measure.
Make a template out of cardboard, and then use that as a guide to make it in 5 mm mild steel.
You also need slightly longer ARB bracket holding bolts.