Will any of these MODS effect ride quality ?

Now I see that you actually replaced a stock bar. The Roadmaster sway bar is most likely much stiffer than the stock bar (which are sometimes even hollow). A stiffer sway bar will transfer more shock encountered on one side to both sides thus given a slightly harsher response. But at the same time that stiffer bar is more resistant to roll or body lean.

Also have seen some reports that the Koni FSD's have a break in period after which they ride smoother.

Lastly, make sure your tire pressures are correct for actual weight and placement on the vehicle (single/dual). Go to tire manufacturer site, not necessarily door sticker unless updated by coach manufacturer.