Silver internal blinds or curtains for

I have only just purchased my 1998 Symphony Autosleeper which I love.  I do have a set of silver internal blinds but they are very thick and difficult to store as there isn't much spare space on my van. It didn't have any curtains when I bought the van and although the silver blinds are good for winter months, I would like something lighter for the warmer months or even curtains.  Does anyone know where I can buy curtains for this model or are they not available anymore.  Also I dont have a TV yet but have received conflicting advice on whether to buy a 12v TV or just pop into Currys and get an ordinary cheap TV.  Any advice please.

What base vehicle is your Symphony on?

Take a look at these. ....

https://www.autosleeper-ownersforum.com/t33471-blackout-screen-cover#286370