You're following in my footsteps, friend! I did the same thing...got the mod #4 on my HH Explorer Deluxe, and then after seeing how well that was done sent the hex tarp in for the door mod. You will NOT be disappointed with what you get back!!!
I'd even asked for something different...a line of velcro to allow me to seal the ends of my tarp against blowing rain/snow.
Sealed one end of my tarp on the last KC hang since we were getting some wind from that direction...let me tell you, it was nice not worrying at all about wind direction when selecting a hang site.
I LOVE the setup I've got now!!