You'll love the area.I fished it ,oh,maybe thirty years ago,and caught lot's of lake trout and salmon.
There are several good places of info online if you do a search.
It's an absolutely beautiful area.
Try these sites,
http://www.moosehead.net/
http://www.mooseheadlake.org/
http://www.maineguide.com/moosehead/
Sebec lake,just south of Moosehead,is also nice,and might be worth a stopover,on your way up.The area is dotted with nice lakes and gorgeous scenery.
Northern,and Western Maine,are beautiful areas to spend time in.It's about as close to a true wilderness experience as you can get,without going out west or to Canada.
Moose are very abundant,so much so,that we actually got bored watching them.
If you ever get the chance,western Maine is beautiful,the Rangeley lakes region is spectacular.Several big lakes with wilderness all around.
Lot's of Moose,Deer,Bear,and great salmon,and native brook trout fishing,along with float planes,and spectacular scenery.
A beautiful backdrop for a picture of a Seacraft.
The best thing is,no crowds.I fished Rangeley for several years,and you'd have this beautiful lake all to yourself.No yahoos like on Winnipesaukee, NH.