Crunk Juice is also the name of a 2004 album by Lil Jon and the Eastside Boyz.
Re: tying the porch roof into the main house... I'll add I'd also go with 5/8 CDX ply for the roof sheathing. That added 1/8 goes a long way to resist uplift , and as you know wind in your area is a BIG issue.
You can add this porch to almost any house, but attachment details may vary from what we show here. On most two-story houses, you won't have to worry about tying in to the roof, but you may have to situate the porch carefully to avoid covering a window. The house roof sloped 5 in.