If you are looking for a supplier of Paulownia , then Stuart Bywater in Brisbane could be the guy to help you out. Stuart has been running board building classes and supplying the Paulownia and Cedar for the courses , so he is more than happy to help you out as well.
"We can supply you with boards and panels of paulownia 2.4m and 3 meter lengths."
200mm x 8mm rough sawn
200mm x 6mm dressed 2 faces
195mm x 6mm dressed all edges
585mm x 6mm panels
"I can also supply other solid sections by request."
Best to contact me at firstname.lastname@example.org