Slide up blind and flyscreen combined with pushout plastic window

Hi everyone,
I have previously owned a Millard caravan; then a Jayco caravan, and now have a second hand 6 metre UK Coachman caravan, tandem axle, which has a great layout for the trip around Australia.

I am always looking for good new ideas to incorporate in my van, and saw a Jurgens 6 metre caravan at the recent Sydney show.
The plastic windows were pushout types (not windout) with external gas strut supports, and were internally fitted with a combined vertical slide up white flyscreen and a slide up white blind that operated independently of each other.

This meant that from inside the van with a large "picture" window you would have a totally unobstructed view of (hopefully) a great view....

The usual caravan web sites (Camec, awardrv, ajpm, and caravanwindows.com.au, etc ) don't have this exact type of window setup.

Jurgens have an Australian supplier, but are only interested in selling me a new van, not in naming their suppliers.

Would anyone have any helpful info on this?

Cheers, Peter.