i8nt2lo
+1y
That setup will be fine if installed correctly. You want a nice ride, then I suggest running as big a bag as possible, front and back. Everyone here will agree. Besides, they're the same price anyway.
Also, RUN SHOCKS!! No reason not too and it WILL affect the ride quality. The only people who say it doesn't affect the quality are those without them. You're gonna spend some duckets on all the components anyway, why not kick in another 2 bills for shocks?
As for the valves, that depends on your definition of fast or slow when it comes to raising or dumping a vehicle. In my opinion, 3/8" valves are the way to go. Or you could run 1/2" valves and use slow-down filters to control the speed of your dumping and filling. Either way, there are components out there to get you what you're looking for.
Really, it depends on what you're looking for when it comes to your setup. Are you just gonna cut your bed up? Do you plan on sheetmetaling the bed and if so, how much room do you want?? Think the whole thing through and you should be good. There are advantages and disadvantages to every setup, but I don't think you should limit yourself to a parallel 4 link with a Watt's just cuz a buddy suggested that route. Checking out other peoples stuff and asking questions (like you're doing) is the best route to figure out what YOU like. Hell, even 2 links with panhards get love here.
If it's price that your basing your setup on, just remember, you get what you pay for. Good shit ain't cheap and cheap shit ain't good. Just trying to help ya out man. Good luck with it.