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If you're going to shoot with primes, you *need* two bodies. During weddings, you basically should have one wide prime and one portrait prime on two bodies for versatility. You don't want to miss shots while changing lenses.
The 35 1.8 is a great lens, but as someone said, it isn't wide enough. Part of a wedding photographer's responsibility is to provide context shots throughout the day, and a 35 just isn't wide enough for tight interior hotel rooms where people prepare.
A 28 1.8 may be enough, or Sigma's 30 1.4 (that's what I use).
A good kit might be:
Sigma 30 1.4
Nikon 50 1.8
A wide zoom, any (ideally, a Sigma 17-50 OS, or the Tamron version. If you need to cut costs, this is the place. Even a kit lens is ok in a pinch.)
A telephoto zoom, or the 85, 1.8. You need reach during the ceremony, and an 85 may not be enough.
'Zoom with your feet' doesn't apply too well in practice during weddings, because expressions happen in a split second and then they're gone. You have to be constantly positioning yourself, but you are rarely perfect with your positioning. I'm a prime person myself, but I carry 2 zooms with me... just for flexibility. You never know what will happen at a wedding.
Also, flash is essential... also just in case. It's all about versatility... you have to handle a wide range of situations that can occur at weddings.