It makes little sense to "imitate" the Amish by joining the Plain Catholic movement or whatnot unless you actually have some sort of claim to roots in that cultural tradition. Can you picture a Chinaman speaking Cantonese dressed in one those Pilgrim-costumes?
Traditional Catholic culture is about preserving cultural continuity - not trying to invent new ones or "rediscover" imaginary cultural connections that never existed.
Though I haven't really put much effort into researching the merits of the various "back-to-the-land" movements, it seems that they are not necessary for a modern-day Catholic to live out a vocation in the world. (I may add that I have no spouse or children to support) A part of this seems to be a wishful "grass-is-always-greener" type of thinking. Though this maxim is not always true, Matteo Ricci writes: "By changing your habitation, how can you change yourself?". If you can't live a good Catholic life in the world (even in a big city), don't expect that by jumping on a covered wagon and heading into the woods that you'll be transformed into a saint all of a sudden. If anything, living in an (sub-)urban area can be a blessing to a traditional Catholic family. You can get supplies more easily and worry more about your spiritual life; close to a church one can frequent the Sacraments and participate in parish life more often. Living off of your own farm at the mercy of the weather is not the only way to resign yourself to Providence.
One can become a saint within the confines of an apartment in downtown Los Angeles. Lao-tzu writes:
Without going out of your door,
you can know the world.
Without peeping through your window,
You can see the Way of Heaven.
The farther you go,
The less you know.
Thus, the Sage knows without travelling,
Sees without looking,
And achieves without fussing.