Rav of Tnuva Says We are Already in an Advanced Stage of the Geula
Ben Waxman on Avodah:
Google docs link
Rav Vitman (long I), a member of Tzohar and the head of kashrut of Tnuva (I think), wrote an article in which he asks if we not in the Messianic Period itself (meaning not just itchalta d'geula or ikvata d'meshicha). Rav Vitman tries to show that according to the Rambam, the ikkar of Yemot HaMashiach is kibbutz galiyot, return of Jewish sovereignty, and the ability to defend ourselves.
The Rav feels that if this indeed true, than we have to start dealing with questions such as what type of government does the Torah want, should we build the Beit HaMiqdash, and more.
I scanned the article (in Hebrew), which is an examination of the relevant Rambams, and uploaded it to Google. Hopefully it will be clear enough for you to read.