Awesome dude ! Being out in the great Desert Southwest, I too have rock landscape. You get used to it. No grass in the front but I do have about 3K sq ft of grass in the back. It's monsoon season and we've gotten a TON of rain this past week so it's looking awesome.
Anyway, I have a covered pation out back that we put on last year. I'm dying to put on something like you have here. Would really make it look top notch. Great job !