Don't think we can buy Boonedox in Australia.
I had to design my own attached wheel system for my TI.
To avoid having wheels in the way of the users it was necessary to mount them back behind the rear seat and luggage area.
That meant way behind the centre of gravity so a front wheel was also necessary.
The rear wheels can be deployed and retrieved from the rear seat before landing and after launch. The front wheels are swung up just before jumping aboard and deployed just after jumping off the front at the boat ramp.
See them here
https://www.hobie.com/forums/viewtopic.php?f=71&t=59743&hilit=built+in+wheels