Welcome to the forum. First, a note - you say 16 foot Airstream Interstate - is that a shorty? A newer one. Did you mean to say the
Nineteen?
Second, FYI there is an Air Forums subforum titled
Sprinter and B Van Forum which is where most of the interstaters are (although you might find more technical info on this forum, depending on the issue).
However, third, you’ve asked a generic Class B question, so let me answer it here.
If I were doing it all over again, I think I would opt for a “non-traditional” awning. I have an older Interstate, so my awning is a fully manual crank-out variety, and I am keeping it for now (if it ain’t broke, don’t fix it). I really like the look of the
Dragonfly brand awnings (or tarps), though. If I were going to replace, I would investigate these further. Some screenshots: