I called Sutton Rv in Eugene Or, and within less than 5 minutes, they called me back saying that that moulding WAS available and was being shipped to my door, direct from Airstream!!!
and if it wasn't the correct one, I could sent it back to Airstream, no charge!!!
Now it don't get any better than that!!
They did this full knowing that I was in Michigan, too far away to be a regular customer.
It arrived today, and it is the CORRECT piece ( 2 8' pieces)
these are SUPER PEOPLE to deal with.
I guess you just have to have a caring/helpful dealer.
I can't say enough about SUTTON RV in Eugene Oregon!!
thanks JANET, for the recomendation