New top for a camper???

Gents,

I've just returned from an aborted trip arounbd "Oz". We got bored going from one van park to another. Too many signs saying "Ya can't do this and ya can't do that", "No camping", "No fires" etc,etc, etc. And the fishing was non-existent! So we've decided to back out prospecting here in W.A.

I'm selling the 18 foot van and going back to my camper trailer - can't get the big van in most of the places that I prospect. BUT - I need to put a new top on the camper trailer.

It's one of those old flip over tent, Cub Campomatic doofers & it's been beefed up for 4WD work. I've had it a long time and the little devil of a thing will go ANYWHERE.

BUT - I need to put a new top on it. This is the bit that flips over to the ground and then acts as the floor of the camper. I put a new top on it about 7 years ago, but at the time I couldn't get a one piece material that measures 1700mm by 2300mm. I had to to join 2 pieces of marine ply with an aluminium "H" section. This is now starting to detiorate and sag in the middle.

Does anyone know where I can get a one piece material of the above dimensions - at least 10mm thick. I don't wanna piece it again as it's not real good for carrying stuff on top. I'll take any suggestion from plywood to titanium! Any space age stuff that anyone knows of??

Thanks,

Bilbo