We have a 2002 Nordic Tug 32/34 and here are some of our numbers:
Insurance with $150k agreed value runs us around $700 per year, with a two month winter layup from Jan 1 to March 1 (boat can stay in the water, properly winterized, but we can't leave the dock). This covers us for the Chesapeake bay and tributaries. It may make a difference that we are moored well up the Potomac, in fresh water, and well protected from storms. Only advice, shop around and use a broker.
Slip fee for a 35 foot slip runs around $3500 a year. This will vary a lot based on location.
We go through about one or two fill-ups per year, around 200-400 gallons. This is putting 100 to 150 hours on the boat, plus generator usage. Cost will vary with the cost of fuel, obviously. Cost will also vary a great deal depending on how you run the boat. We tend to run around 8 knots, which is fairly efficient. If you decide to push the boat up to 12-15, you fuel usage could triple or quadruple.
We do our own repairs, but generally spend $1,000 to $3,000 in parts and upgrades each year. This number can obviously vary quite a bit from year to year.
Can't speak to winter storage, as we keep the boat in the water all year.
Our dock electric runs around $30 per month in the fall and spring, to about $100 per month in winter due to the use of electric heaters.
Not going to comment on finance costs, as that will vary depending on whether you finance and how much you put down. That said, rates are very, very low right now. So much so that a loan may make financial sense even if you are able to pay cash, if you are able to get a better return on your investments.
Most of our trips we anchor out, so maybe another $500 a year in marina fees while away from our home dock.
Food and beverages can get very expensive.