To answer ebpusey's second question I think ROCOR's Roman Rite Missal is the version of the Roman Missal approved by the Russian Church in the late 1800s at the request of the convert Overbeck (who wasn't allowed to serve as a Russian priest because he was a former Roman Catholic priest who married). I've been told it's simpler than the Tridentine Mass (like the traditional Dominican Missal is in the Roman Church) but still traditional Roman Rite (in this Orthodox version there's no filioque and an epiklesis added).
The Antiochian version is, with those Orthodox changes, the Tridentine Mass.
Both are done in English but I think of course can be done in Latin (the West's traditional and pre-schism liturgical language). St Mark's Antiochian in Denver does one in Latin.
St Tikhon had the idea of a Ortho-fied Book of Common Prayer for an Anglicanism reunited with his church and never actually used it. He sent a BCP to Russia for study and the Holy Synod wrote a report, which the Antiochians implemented many years later and still do.
IIRC Western Rite Orthodoxy exists in only the Antiochian Church, ROCOR and one European Orthodox church. The rites are:
• Roman Rite (ROCOR),
• Roman Rite (Antiochian),
• modified BCP (Antiochian),
• ROCOR's Anglicanesque one (part BCP, part Sarum Use Roman, part byzantinisations) done by two or three ex-Anglicans in Australia and
• the so-called reconstructed Gallican Rite (heavily byzantinised) which St John of Shanghai and San Francisco in the 1950s help draw up for 'the Orthodox Church of France' (l'ECOF) when it was in ROCOR. I don't know what happened but much of this little church is now outside canonical Orthodoxy but I recently read that some parishes in Europe are back in it and using this rite.
Most Western Rite Orthodox are Antiochian former Anglicans in America using the modified BCP (St Tikhon rite).
Interestingly there are four times more of them than their opposite number in the Roman Church using a different modified BCP.
I think the Antiochians allow statues and ROCOR doesn't but both use Western crucifixes. I also was recently told that the Antiochian ones cross themselves the Western way, left to right, whilst the ROCOR ones do it the Byzantine way (as I've seen on video) claiming correctly that it's authentic early-mediaeval Western practice.
In practice both groups are often noticeably byzantinised, the mirror of Roman Rite practices and devotions in a Byzantine Catholic parish.
Aidan Keller used to be a priest and monk in a group not in canonical Orthodoxy with its own version of Sarum Use (which in practice looked very byzantinised).