Congratulations, and welcome to the Class B community!
I’m not sure what you mean by “tracking down” an awning. They’re not a Roadtrek-specific component. Awnings are made by third parties and used on a variety of RV types. Several companies make a similar type of crank-out case awning that would have been used back in 1995. Fiamma and Carefree are both good brands. I’ve heard more complaints about Dometic, but no personal experience. Mine has a Carefree, which I think was added by the dealer that originally sold it, not Roadtrek. They are all fairly fragile and have to be rolled in in when the wind picks up.
Figure $1000 for a basic manual case awning (and I’d personally skip the power and auto-retract features). You might find a used one, but test it first to make sure it’s not damaged. Measure the length you have available on the side of the raised roof to determine the size you need. You’ll need brackets to attach it.
There are also lower cost alternatives that give better coverage and/or performance in wind and rain at some sacrifice of convenience. Shady Boy, Bus Depot, and Batwing come to mind. I’d lean toward the Canadian-made Shady Boy myself if I were starting from scratch, because it’s better in wind and rain, and the arched poles will clear the swing-out entry door on my Chevy RT better than the fold-out rafters on a case awning.
You can also buy a freestanding awning for a fraction of the price of a factory-style case awning. One advantage is you can set it up anywhere in a campsite you want- over a picnic table, in a shady grove of trees, close to a stream or lake, or behind the camper for privacy. Some have screen and/or wind panels, depending on your climate. There's the familiar EZ-Up style (with countless knock-offs), as well as the self-folding, screened Clam style (also with a number of knock-offs). Costco was recently offering a Clam clone for $199; don't know if it's still available. Disadvantage is they take up space when you're traveling.
2014 Roadtrek 190 Popular
2008 Scamp 13