Thats correct "County" just denotes the trim level. In a county there would be wood trim, floormats, ABS etc. County models were the top of the line. I have an 89 so the differences will be many but you get the idea. So therefore you could have a SWB and a LWB county RRC. Just measure the wheelbase if it is 100" then it is a short wheelbase and if it is 108 you have the long wheelbase.
Lastly I would encourage you to get a RRC I absolutely love mine. And I would definitely get the SWB it is surprising how much room there is and it is better off road. Good Luck