Hi Rusy,
I know it's been quite a few years now, but in care this message still reaches you, I'd be very interested to see a photo of your Bengal Dennis, to see how he looks compared to my two unregistered Bengal/crossbreeds, and whether I might have a similar chance to get an inport approval for Australia, meaning whether ours look more or less like a Bengal compared to yours.
Alternatively I'd be happy to hear of anyone else's experience recently getting Bengals or Bengal-Tabby cross cats into Australia without pedigree documentation.
Thanks
Udo