Hello there...welcome to the forums!! You can search right here Awnings - Airstream Forums
and get all your awning information.
You can purchase a Zip Dee and have it shipped to your door for about $1200.
Awnings By ZipDee
The big heavy duty arms are not Zip Dee. There's a ton of stuff on the forums...this place is a bottomless pit of AS info. Hopefully this info will get you started.
Have fun and enjoy the ride!