65' and about 45 tons loaded, here. I had about an 80-90' section of dock with nicer, more expensive boats fore and aft, and I could pretty easily go into and out of it by myself, no bow thruster and ridiculously bad reversing with the
motor. I never hit anybody, and never even really got close.
Anchoring is a cinch for me, even with all my friggin' freeboard providing more windage than I care to admit.
Like most people here say, the trick is in being slow, deliberate and patient. If the opportunity isn't there, then don't push it. Just wait until the window is open. This applies to pretty much all sailing, but the potential damage goes up in direct proportion with your tonnage.
Sailing, with the proper blocks, winches and line is no different on a big boat compared to a smaller one, you just have to be a bit more conservative with when to pull the
sails in, and not be thinking about the extra 1-3 knots that big
genoa gets you, just in case that spat of snotty 30-40knot
wind actually does come for you in the middle of the night.
And oh boy, does it help having all the extra room when you're a thousand miles from the nearest atoll. Plus like others have mentioned, you'll save yourself the upgrade down the road.