Yeah, not to rain on your dreams, but as just pointed out, Robin Graham finished his trip on that much heavier Allied Luders 33. My dad was a yacht broker up East in the '70s and we sold more than one of those based on that reputation, it was a good solid boat and reasonably fast too. Why did Robin ditch the Cal 24? Because she wouldn't reliably make any money to windward at sea when the wind was over 20 knots (meaning half the time, roughly). The Luders would go to windward in up to 40 knots. What a difference. Take a look:
Now the Ranger 23 might indeed make a long ocean passage if you have above-average luck with the weather, and are content to ride out or reach out the headwinds instead of knocking out all your fillings beating into the big seas for days on end. But let's say the boat can take it, can you? My old man used to say (when we were out bad weather, "kid, the boat's tougher than you are", and it's true. It will take more of a pounding than you can, because it doesnt need to digest food and sleep, while you do. Many Coast Guard rescues are of sick, beat-up, exhausted sailors from otherwise seaworthy boats.
So, you might want to go just a "little" larger than that 3000-pound Ranger? Maybe a 5000 lb Albin Vega 27?? (look up Matt Rutherford's recent circumnavigation of the Western hemisphere on one, and even that is kinda dicey in terms of comfort and endurance). Think about a used Pearson Triton, solid little Alberg design and a little heavier yet. You could go up to say 30 feet and about 8000-10000 pounds?
Or dare I say it, look for a nice used Luders 33? (12000 pounds)