I disagree, I think a Supercharger is more complicated for a DIY. Its relatively easy to find turbo manifolds, turbo's and the stuff to kit it together yourself DIY. Where as the supercharger adapter plate to mount the supercharger isn't readily available, along with the pulleys to run the belt. I wouldn't try to piece a DIY supercharger kit, I would do turbo just like you planned on if your building the system yourself. Thier is also alot more info on building a turbo DIY project, than a Supercharger DIY. Good site for technical info is
Ecotecforum.com You can use a mega squirt, or even a SDS EIC for tuning, HP Tuners might have something out now. Doesn't matter if you run Supercharger or Turbocharger both your gonna have to tune for.