Southern maine (portland) is commonly referred to as north boston.

Augusta south is more populated. Unless you have a job lined up, going north of Bangor could be tough finding a good job, but they are out there.

If you love the outdoors and enjoy the quiet, you will love it north of bangor. Just an FYI if you want internet north of bangor there are few options in some area's, most people are moving to starlink since your lucky to get 5MB-10MB dsl in a lot of area's

If you have a chimney (even if covered by a wall) that is ready to use. It is just a matter of uncovering the chimney vent and hooking up a wood stove.

However there are factors to consider, is the chimney in good condition and usable? Depending on the distance to the wall you may want some tile/brick with some cement board to protect the wall from the heat. That also depends on the stove as well, how much heat it will give off to the wall(s) around it.

You will also want a hearth on the floor as well to protect that.

So if you want to do some/all of the work yourself, it would be mostly just the price of the stove and other items. Prices for wood stoves and all other things are crazy right now. I installed my Englander wood stove myself (replaced an old jotul) back in 2015 for about $600 for the cost of the stove. Now they are nearly $1400.

If you are looking to pay someone i'd expect 3k-6K, but you can also go through efficiency Maine for rebates and loans.

Just remember with wood, it has to be seasoned, you need a nice dry place to store it. We are going with heatpumps and a pellet stove in our new house just because I"ve done wood for 30+ years and I"m tired of it.