Elemein, it sounds like you're more interested in and familiar with the technology pertaining to remaining connected to the world than you are with the sailing aspects of moving from place to place around the globe. I would suggest that you think more about the sailing aspects.
You could learn a lot about both the sailing and technology roadblocks by learning
everything you can about sailing solo around the planet while keeping your family
and interested onlookers informed of your progress and problems. Luckily, two of your contemporaries have already done this for you.
Jjessica Watson and Abby Sunderland (and her brother Zac) and you will find enough material to keep you reading for a long time. Keep in mind, these young girls were sponsored, so there was someone else worrying about the cost / paying the bills, but the bottom line is that someone has already blazed a trail for you - learn everything they did, then look for a better / cheaper way to do the same thing.
An even better idea might be to set as your personal goal the creation of the solution to the problem you're addressing. If you come up with the hardware
solution to the problem, and one that puts 24 / 7 connectivity at a reasonable price
within reach of the masses, you will become so wealthy that you can have a Maltese Falcon
of your own to take you anywhere you want, whenever you want.