LOL this is gunna be a fun thread, you will have some say its a boat you do not need half the things you listed that a boat is made to be sailed that if you want all that live in a home then you will have others that will disagree.
This is my opinion alot depends on how you plan to use the boat and the size of the boat.
I am guessing that you plan to be a live aboard.
Do you plan to travel?
what type of boat?? sail/motor??
After living on land for most of my life it took me about a year to down size everything I own to fit on a boat, coming from a 1,200 house to a 33' boat is a big change.
I do agree that in alot of thing you are better off to buy marine grade but disagree on others.
I have made alot of changes on my boat that I know people will disagree with. I took out the DC Adler Barber cold plate and installed a home icebox
, I removed the LPG stove and installed a Electric
range/oven and Removed the Marine Air unit and plan to replace it with a heatpump. I have my reasons for all this but it would make the post very long to state way.
My wife and I live on a 33' boat and do plan to travel if I ever get all my work done, lately we had a few set backs.
I have 2 flat screen
TV's a home computer and a laptop with DSL, a stereo and inside lighting
system most of this are toys and while we travel will not be used.
Up until 2 weeks ago we did sail alot we tried to get away from the dock
every week but ran into a set back with the motor
Now to the upgrades that I have planned, some are done aready, I list them so you can understand why I made the choices I did.
first off you figure out your basic needs refrigaration, cooking
then figure out your luxury items after that figure out your energy needs.
In my case I wanted to use as much renewable energy as I could. My energy needs come out to around 400 amp hours to 600 amp hours based on that I had to get a battery
bank that was 1,160 Amp Hours due to recommended use is 50% drain. then how to recharge. I plan to have 4 sources to do that, Solar
pannels 600 watts, 400 watt wind Generator
6,500 deisel generator
and then shore power
with a battery charger
when not sailing.
Up until now I have used my Laptop as a chartplotter
with paper backup, this will soon be replaced with a Raymarine chartplotter
and the laptop will become backup.
As for water the cost of water makers are very high and use alot of energy so I plan to have a rain collection that will fill my tanks.
I hope this info helps.