19 feet is a mansion compared to some boats that have sailed much farther. Many of the larger more expensive fiberglass boats have thin hulls compared to their size. Plus, the little boats can be propelled by oars or solar-powered electric trolling motors when there is no wind and literally pushed off by hand if they run aground.
Sven Yrvind rounded Cape Horn in a 20 ft sailboat he built in his mom's basement and now is trying to round all 3 Capes in a TEN FOOT boat even though he is getting pretty old! yrvind.com
Shane Acton sailed around the entire planet in his 18 foot sailboat SHRIMPY for EIGHT YEARS. He left without any sailing experience (but had experience in the Navy) and a couple of pounds in his pocket. His book is a great read for any would-be boat punks--he pulled all sorts of crazy scams and stunts to fund his voyage along the way (his biggest challenge seemed to finding enough cigarettes!)
Kenichi Horie sailed from Japan to San Francisco in a 19 footer WITH NO PASSPORT.
In fact, there is an entire culture in sailing around these boats-- microcruising--http://www.microcruising.com/
Tania Abei (a street punk forced-to-be sailor by her maniac artist father) circumnavigated the globe singlehand at age 18 in a 26 footer.
I am docked and sail out of Corpus Christi, which if you look at a map of wind speed and wave height, you will see it has the highest average sustained winds and steepest waves anywhere on the Gulf Coast. Almost every day, the wind builds to 20 knots with short period breaking seas of 4 to 6 feet. Its like sailing in pounding surf.
The moral of all this, big boats may be faster, but are not necessarily safer. In spite of all the talk about "nearly free" boats over 30 feet, I've never seen one in Texas for less than about $1,500, and ones that needed some very expensive and serious repairs at that.
Plus, its only me. I've never met any other boat or any other kind of punks/wanderers in Texas and have no friends. The little boat is a lot easier to single-hand, even though it is not set up with lines to the cockpit to do so. (I lash the tiller and dash madly up to the bow to do whatever I need to do).
Yeah, I've seen/heard/read about those people, but in my personal opinion they were all insane
As for the speed, i don't think a 30 ft boat would be any faster than a 19, but i could be wrong.
Seriously though, I don't know much, but having two people in a 26ft 1976 Grampian on the water in key west was a bit uncomfortable after a while, and sailing my friends 40 ft concrete boat to the dry tortugas were were bouncing around like crazy on a calm day. I just can't see taking the 26 across the ocean (although it had been done and the grampians have been sailed all over the world, I don't know if it would be very fun).
But don't let me tell you what to do, do it and get back to us and let's us know what it was like! Especially for two months! Damn!
Are you going to take pictures? Dunno if there's much to see in the middle of the ocean, but maybe before leaving and upon arrival.