Creme Yvette instead of Parfait Amour?

I've been meaning to try some of the drinks out there that call for Parfait Amour, but none of the stores near me stock the Marie Brizard product, which I read in another thread here is regarded as inferior to the unavailable in the USA Bols product. What I do have access to is Creme Yvette and a wide range of orange liqueurs. As I understand it, parfait amour is based on curacao with the addition of vanilla and violet petals. Could I use a combination of creme yvette and curacao to get a flavor roughly analogous to the real deal?

If it is a combo of orange, vanilla and violet then you would probably use an orange liqueur and crème de violete and possibly some vanilla syrup.