The Prairie 29 has a very short waterline and such an open passage must have been hard.
I sailed all over the place, several Atlantic crossings but I reserve my little Prairie 29 for protected or semi-protected waters.
Those passages are not impossible, I was on a Prairie 29 that went back and forth to Santo Domingo and the one I bought did the Great loop, that means one 200 NM passage but I am too old for all that rolling and pitching.
The boat can take a lot more than I can.
I am still getting a feel the boat and right now, depending on my course, I prefer not go out with a wave period of less than 7 seconds. 10 is much better.