Anyone taken a punt and tried one of the inflatable kids rigs on Alibaba yet? eg. www.alibaba.com/product-detail/Promotion-inflatable-windsurfing-sup-wind-surf_60802537198.html?spm=a2700.7724857.normalList.24.1e5a7fe2T7rAld
Looks like you can get them landed in Oz for about a third of the price of an iRig.
Thanks!