There was a thread on this a while back. I know of a good post-Vatican II source for Benedictine monastic vigils. It has the same psalm order as the pre-Vatican II office but obviously it is adapted to the current liturgical calendar and lectionary. Alas it is Latin-French only (not an obstacle for me as I’m a native French speaker). I have a pre-Vatican II monastic breviary, entirely in Latin. It was a gift from my spiritual director, obviously out-of-print. There may be English sources from specific monasteries.
This is indeed a brave undertaking. I tried it. All I can say is that it is incompatible with professional and family life (at least to do the entire nocturnal and diurnal), but if your situation allows it, go for it, just be careful that you don’t overdo it and neglect the needs of your loved ones; should those needs take precedence, it is far better to drop an hour and offer up your obligation to your loved ones as prayer in lieu of the omitted hour.
If you dig beneath the surface of the current 4-volume LOTH, you’ll discover many brilliant ways of adapting the traditional with modern needs. It’s what I’m currently using. Moreover now books exist to chant the diurnal LOTH in Gregorian chant. As you may know, the Office of Readings replaces Vigils (Matins) and can be said at any time but nothing prevents its use as Vigils as a night Office. In fact the GILH has instructions on how to do that, and the Vigil canticles for feasts and Sundays are included as optional parts.
Remember that the monastic Office was designed for use in monasteries, not for lay use, so using in a lay setting will be a challenge.
