Lee,
Mike's Marquis was factory equipped with a Girard patio awning. His question was referring to the slide topper (no power needed), door, and window awnings.
Mike,
Although it is possible for a coach owner to install a complete Girard awning package, it is above the skill level of the average do-it-yourself owner. However, if you are a good automotive painter and electrician with access to someone to help in the mounting process, you can do the installation yourself, but it will still not be cheap. Having someone install a Girard awning package on your coach will be well north of $15,000, and most of that is parts.
Gerald