Did a quick Google for you and found these:
CORSE DYNAMICS Axial Caliper Adapters: 65mm to 40mm, $129.99 http://motowheels.com/i-8518113-cors...m-to-40mm.html
SHOWA caliper adapter (40 mm to 65 mm caliper bolt on distance) , €139.00 http://www.performanceparts.de/en/br...ce.html?lang=1
Yoyodyne - Brembo 40mm to 65mm adapters, $199 http://www.yoyodyneti.com/category.aspx?categoryID=2954
All essentially the same thing.
As an alternative, why not change the forks, or just the fork bottoms for the correct mounts?
As for the calipers, they are supplied by Brembo to lots of manufacturers, including Ducati and Aprilia, so they will be the same.