Hi docbluedevi,
Here is what I was able to find out on the 2004 Safari 28 W:
HITCH WEIGHT - 890 LBS
BASE WEIGHT - 5580 LBS
GVWR - 7300 LBS
The GVWR on the 2004 Safari 28 SO is actually 9100 lbs, not 7300.
The Airstream spec sheet is here:
http://www.airstream.com/airstream/p...pec_safari.pdf
Hope that helps!