Another swede to a swede....
First of all 40-75ft is a very wide range. To maintain a 40 vs 75 is a big difference. Also, to buy a 40ft in good shape vs a 75 in good shape is also a big difference. You say you don't have the finance. Well, before time kills your dream I would suggest you settle with a smaller vessel no bigger than 42ft. So...just to keep your dream alive and realistic
Cat vs. Tri vs. Mono....The never ending story
I have done two pacific crossings with two different cats I'v had....and Yes I do prefer cats. Lots of deck
space and huge cockpit
....and I prefer the motion. Trimaran has good deck
space, usually not as great cockpit
as cats, less space inside compared to both cats and mono. No all tri's sails
better than cats but some do....Not as many tri's as cats on the market. A catamaran
with keels is no big deal to beach. Hard to find catamarans for sale
in scandinavia but every now and then you will see some listings.
I'm 30+ today and have fulfilled my dream twice already, so I suggest you to start doing the planning and calculations
Spending three years circumnavigating the globe would cost you about 360k SEK assuming you would go for something around 40ft. There are people circumnavigating on small crafts like Albin Vega
and they manage to survive at about 180k SEK for three years.
You can probably find a boat around 40ft in good condition for about 400k SEK. Or you buy a cheaper and smaller boat 32ft L32 for example for about 100k SEK.
When do you want to go?
Three years around the globe in a L32 you would need at least 300k SEK totally
Three years around the globe in a 40ft boat and have some more money
to spend, at least 800k SEK