I owned one of these trailers a few years ago. I believe it is a rare trailer as I have only seen one other here on the forums.
China trip - don't know.....
If I recall there was an antenna hookup on the street side between the dinette and side couch.
Blue stripe - it can be removed but my opinion is that the trailer would look better if replaced with another.
I really liked this trailer since it was our first Airstream but we out grew it. It was very light and pulled easy.
Steve, Christy, Anna and Scout (Border Collie)
1994 30'11" Excella - rear twin
2009 Dodge 2500, 6 Speed Auto, CTD, Quad Cab, Short Bed
Hensley with adjustable stinger
WBCCI # 3072
AIR # 6035