Installing a single RXP GNS530 is basically plug and play.. and if you have questions, there are folks on this forum who can help..  so, yes if you want the functionality of the real GNS530 - this is the unit to get..  IMHO..

I got it and it's very wicked!  Easier to operate than the stock Carenado version if you ask me.  Just wondering how to update the NAV data to something in this century.  I find I need to manually enter lats and longs/waypoints to be able to fly my flights.