Pick one and run it for awhile then when you can try out the other. Then you'll have a kart meant for each because xxx is right on offset won't do as well on a road course vs straight rails and a straight rail will struggle on an oval vs offsets.
If your racing a series that runs both ovals and road courses on dirt and requires an offset chassis (example DNQ series)
They all pretty much work remarkably well, even on the road course with a standard setup. No issues with right handers at all.
We won the inaugural DNQ Cup InterCourse race last year