Hi Meg--you may want to take a look at the fragrant plants forum on Gardenweb. There's a discussion regarding this plant. One person had their nursery order a M. Champaca from Monrovia. Perhaps a nursery close to you would do the same. You could also look at Logee's website if you want to consider mail order. They have the M. Alba. I've always had good experiences ordering from them. Hope you find one!

Thank you texaskitty,I have been lurking in the fragrant flower forum and actually asked Monrovia already.they say they might have it in the fall. Meanwhile the search continues.