Tim,
I hate to be a downer but the soul of the rainforests is being raped for mahogany. The soul should be in the painting.
There are many Claessens, I am sure you must be referring to the 13DP and the 13DP. I get mine from New York Central Art, as they carry the 84" width. Actually they carry the best lines of canvas available anywhere and will custom prime and stretch.
www.nycentralart.com
Sincerely,