IMHO superchargers are a waste of money. If you want to go fast get another vehicle. If you want it for low end torque, get an H1 witha diesel you will be spending the same 55,000 +25000 for the deal you saw. New H1's can be had for this amount.
I love my Alpine DVD navigation system. I am moving it and my Alpine DVD changer to the H2 after Christmas. That's the only time my installer is free. The key is where to put the monitors. There is a thread with one shown mounted in a custom enclosure in front of the mini overhead console (with sunroof). It looks good, but I think they are soaking him as well.
I am considering mounting a single ALpine monitor on the dash to the left of the sdash for NAV only.
I also like the premade head rests that are at
www.autobarn.com.
The installation of the Alpine monitors in the overhead console (without sunroof)at the site you put in an earlier post are a very good location, but the whole system is W A Y over priced. You could get that done for no more than $5000, not $8900. That's a screw job.
You must carefully shop for accessories. Most dealers and aftermarket guys know this vehicle is hot and some people are paying over sticker for them. SOOOOOO they assume that everone will and will also pay that for accessories. Not me and you shouldn't either.