A person can get advice over the telephone from an Orthodox Rabbi, just by ringing an Orthodox Synagogue and leaving their name and telephone number .
Also http://www.partnersintorah.com is good.
Checking the Kashruth guide (Kosher food guide) on the internet is good.
It is all perfectly manageable and lots of people do it because of geographic considerations. And it feels good, really good.
The basics of Judaism are really very simple -just a few small adjustments learned over just a few, literally a few days – not a year in a learning institution, although it can be beautiful-and one is already living as a Jew.