Hi David, I do have one that is surplus to requirements now that I've got a standard sized car again. I haven't look at it for a few years, but it hasn't had miuch use, probably only used half a dozen times, but I will drag it out of the loft later, but I think it is a duck material, (not vinyl), and it has an easy entry zip or two, comes complete with a bag and rear enclosure when parked. I don't know what sort of price I want, but will research it and let you know.
If you send me your email address, I will take a few pictures and send them on so you can see what it is like.
You need to check it is suitable for the roll bar you have before purchase
Brewery piss-up organiser
There's one here