Recently there is also a regular minyan at 8.30, I have been several times and participated in the minyan.
Yes there are always maintain.
There is constantly standby minyanim starting earlier but its not scheduled rather once ten daveners are ready a minyan starts...if you want a guarantee minyan try chabad oof Cederhurst
Not a daily one. But very easily arranged and happens a lot
Most days yes, there isn't really a set time for minyanim though so it depends on the day.
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