Window Blinds/Fly Screen Replacement

Hi all!
Looking for advice from anyone who has experience of replacing the large rear blind/fly screen on a 2004 Ravenna on Ford or similar.
Mine has failed and is past it's best. I can't find a source for a replacement online. So if anyone has done this job and can offer advice, please give me a shout! 

Seen plenty online vids for newer vans and newer blinds etc. Not found anything that's going to be compatible with a van this age. 
Cheers
Mal

Paulmold wrote:https://beytug.co.uk/shop/blinds/motorhome-blinds-flyscreens/blackout-dark-grey-pleated-blind-flyscreen-for-caravan-motorhome-horsebox-boats-in-black-frame/

Looks promising! I'll do some measurements and contact them. 

Cheers 

They are listed on CAMC website, I think they give discount to members.