Come on now, you know a good judge would be able to tell it was a bengal even if you put brown tabby
If they can't, then they shouldn't be a judge
I think I'd still contact the breeder first.
Someone asked about why a breeder didn't want their pet quality shown at all. Well its a reflection on their cattery. I'm not sure how to explain it. But it could be like saying "if you wanted to show, why not just by a show cat and show in alter - then make it a pet later".
I think that Charlie's breeder changed the contact for me to show for 2 reasons: (1) Charlie did turn out better as he got a little older (difference of 3-4 months) and (2) she knew I had been active in showing cats, had grands, etc.
She knew the we might be interested up the road. I think that if we hadn't mentioned it before, Charlie would just be a pretty pet.
When selling my rexes (which most were showable, not just a pet), I'd tell people who were on the fence with showing, "if you change your mind about showing and want to show, you'll have a cat that is worthy - rather then the opposite and have a pet quality that can't be shown". Many of my show kittens were living as pets, but the people had a quality cat that could be shown in the alter class if they changed their mind.
Maybe its a thing of pet is pet, show is show. If you want to show a mixed breed or a purebred looking cat you rescued from a shelter - that's different then going out and buying a pet quality cat from a breeder and then show it. I'd rather show mixed breeds in the HHP class then a purebred - they do better
If I wanted to do that, I'd probably go back to the breeder or another breeder and say "I want a good quality cat that can be shown in the alter class".