In a word, no.
Taking a Catalina 42 on a rtw trip is somewhat akin to plowing for 2000 acres of potatoes (you're from Idaho, right?) with a Cadet Cub tractor. You may be able to get the job done, (others referred to above apparently have) but it will likely kill the tractor and may not be as enjoyable as using a tractor that was better suited to the task (a Massey/Ferguson 7400 comes to mind...) Books could help you learn more about what to expect and what your boat will need to do. Beth Leonard and Steve Dashew each have written books about extensive cruising and preparing for it. They would be worth reading before you make a 42' mistake.