I doubt it unless it was a very large pen. Ringnecks are much bigger, and much more aggressive. Goldens stay pretty small, and don't fight like ringnecks. My guess is it would be very hard on the goldens, but I have never tried them together either.
The more room you have, the happier they will be. They like to roost high, and need ground cover also. I think they are much easier to raise than ringnecks. They don't fight like them, and are extremely hearty.