Well I don't plan to kill my ties with my family. They're supportive and moderate thankfully. Me coming out as an apostate does little to make things better for me, things are fine as they are now I'm not limited in what I do.
So I guess with marriage it would be better if I chose a candidate that was liked by them. But reconciling what they like i.e. good muslim girl with what I like i.e. I'm not too sure, is going to be quiet problematic!
I know where your coming from, but I have to say it is highly idealistic and a difficult thing to achieve.
I've been considering the same thing for a couple of years, my situation is a bit more complicated since there is a stronger religious element to it. The idea of trying to appease my parents, and potential in-laws, while living a lie just doesn't seem like it can be maintained in the long run.
Finding an Ex Muslim to marry will be difficult in and of itself, but finding one without additional baggage will be extremely difficult. There is definitely a lot of Muslim women out there who are not religious and who probably come from families who are as moderate as your own, but even then, when getting into a relationship where you are expected to live up to certain standards can be quite stressful and can lead to a lot complications in the future.
You mentioned in your intro that you have older siblings, are they married and what was it like for them? Arrange marriage or Love marriage?
Growing up in Desi culture can add further complications to marriage, is there any other expectations that your parents might have, like being of the same ethnic background or being able to speak their mother tongue so that she speak to your relatives back home? lol