As someone who has built and installed numerous turbo and supercharger kits...i disagree. Turbos are a MUCH easier build/install. The only "hard" part is all the piping. Now this is from a custom build stand point. A supercharger "kit" is very simple to install! Problem with superchargers on our truck is the high compression ratio. i think the 4.7 runs like 9.5:1. ideal is 8.5:1. Youd have to keep boost levels WAY down or you could do some MAJOR damage to your motor. All in All id go turbo. unless you find a decent Supercharger kit. And whatever you do...TAKE YOUR TIME!
What always stopped me from doing forced induction was tuning.....but it seems tuning has become more available and easier...