Starlink Mini Mounting for Yakima Roof Rack

Have you asked on the Starlink Mini page?

Lots of people show their various ways of mounting the dish to their vehicles.

It looks like your planks have the usual grove setup so a starlink mini mounting
kit for a rhino roof rack etc should work though you may have to change/modify the channel
fixing nuts if they are different to the rhino rack ones.

If you have a Facebook account join the Starlink Mini Australia group. Lots of information and mounting options. Outcamp products seem popular. A bit depends on whether you want the ability to quickly remove the device or want a semi-permanent mount. I haven't set mine up yet, but will probably go with this Outcamp mount and the protective cover.
Stefan Fischer has done a preliminary review of the Outcamp mount.

i source all my starlink mounts from either spacetek or outcamp