Hi ncsurfer
It should come up in the search function as I have one, and had previously asked for information.
I had one on my 1935 Alvis, so had one made for the Pagoda a couple of years ago, by
http://www.donhoods.com which is based in the UK.
They make lots for MGs and can do any materials, and are very helpful.
I use the car extensively, but have only used the tonneau a couple of times, as I usually just put the soft top up, if leaving the car in rainy summer weather..
Keep well
Paul