Moreover, as you asked, they don't need a lot of equipment to be installed, and most companies come and install it for you. I have one in my yard for the same purpose, to protect my cars, and I got it from carportaustralia.com.au - Carport Sydney Builders | Carport Shed Design & Installation...
One of the best options for you is the carports since they embrace all the points you need. There are a lot of models to choose from, and they are very resistant.