<<Maronites are really a variation of “Latin Catholics”, right? In other words, some of the practices of Eastern Catholics, …>>
Yes, you are wrong. Maronites are a special form of the West Syrian Liturgical family, not a variation on Latin Catholics, though because they’ve been in communion with Rome the longest, you might find more Latinisms.
Maronites are also a patriarchal church.
<<Am I also correct in believing Maronite liturgies are in Arabic, except that some places in the U.S., for example, they’re in English?>>
At my most recent assistance at the Maronite liturgy, a mixture of Arabic, English, and Syriac was used. However, the Words of Institution are always said in Aramaic, regardless of the language of the rest of the Liturgy.
The classical liturgical langauge of the Maronites is Syriac, though Arabic has been used for centuries, except for the Words of Institution, Trisagion, and a few other parts.