T&T: live aboard costs?

[Anne Borna]

 Not a new member but have never posted before. I am getting close to
retiring, and would like to purchase a trawler in the 50-60 foot range.
Trying to get a handle on the costs in order to create a budget and make
sure I can do this. Would like to cruise the east coast, Bahamas and
possibly a Caribbean run or two. I already have contacted an insurance agent
so I know the costs. There would be a separate budget for maintenance and
repairs, as with fuel. We would like to be on the hook about 75 percent of
the time, and monthly dockage the rest of the time. Could someone please
give me a rough idea about the costs yearly? Is 30-40 k a realistic number
or am I too low? Are there any moorages available on the east coast for that
size boat or am I limited to transient dockage only?  Thanks for your help
ahead of time!  Gerald Borna