Personally I think when you put too many non-necessary standards when it comes to marraige, you most likely will not find what you're looking for. I know what you mean about reverts being so devoted, and I agree it's true most of the time because they went through a life without Islam and when they finally found truth, they hold on to it as if they have found gold. Thats one reason why the Sahabah were such great Muslims, because they were once wrong-doers but were led to the true path and remained devoted to it. BUT, that doesnt mean that women who have always been Muslim are not devoted as well. There are many great Muslim women who have been practicing their whole lives.
Actually, there are many people who are just Muslim "by name", but they dont practice the religion. Then one day they wake up and start practicing it properly, so even those women are considered to be "reverts". For example, someone who doesnt pray is considered to be like a Kafir. Once they start praying, thats when they revert back to Islam. The odds are that when people go through a difficult stage in their life it makes them a better Muslim and more devoted to Allah. So it's mainly about her experience rather than the fact that she is a new Muslim. You could be happy with any Muslim girl from another culture as well, the important thing is that you find one who practices her religion well right now. Just like the Prophet (saws) recommended.
Even though you were born and raised in a Muslim family, you DID choose Islam. Your parents can only raise you and encourage you in one direction, but at the end, its your choice. There are people who deviate away from their religion and not choose to follow it when they grow older. But each one make their own choices, and elhamdulillah you chose Islam and you should be happy about that. Choosing Islam means you fully accept it into your heart.
I wouldn't stress too much about finding that perfect someone that you dream of, your soulmate was already written for you since before you were born and you'll be together when Allah pleases. Just look at how she is with her deen and inshallah khair :)
"A woman is married for four reasons: for her wealth, for her fame, for her beauty and for her religion. So marry one for her religion and you will win."
[Bukhari & Muslim]