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.
To tie the roof into the siding, the tin roofing panels must first be installed to within 1/4 inch of the siding. Insert a nail bar beneath the bottom row of siding that lies directly above the seam where the tin roof meets the siding and pry upward gently about 1/2 inch.