I'm frankly a little tired of the "Amish we are pure" story. There was an article on PBS just a couple weeks ago, that leaked a few things about the crack in the armour.
Some of them were complaining that farm land in the Amish community is simply getting too high to "make it" anymore, and many are (have) resorted to "outside" jobs.
This article showed some of them traveled from the East to ?? Nevada? Anywhere "somewhere west" to look at a big piece of land to set up a new community, and they sure as heck didn't get there by wagon train
Seems to me you could still honor the essence of your beliefs and still manage to join the modern world. In fact they have. They just refuse to admit it.