I second littles down under or down under care. (Same company) one more catered to ABDL and the other more medical but still has some ABDL diapers.
I'm pretty sure that they have sample packs but you have to pay for them. As soon as you get away from the "medical" diapers there is no going back! Ha it's like chalk and cheese! There are white ABDL diapers that could be considered more medical but are so much better than abena or molicare.
The great thing about down under care is that they are a registered NDIS provider if you are on the scheme.