You can find some info on Airstream's archives here: http://www.airstream.com/wp-content/...dacd35e8bf.jpg
GVWR will be dependent largely on the axles - if they're 3600# each, your max weight is 7200# (the information should be on the sticker on the trailer).
Putting all that weight (assuming you fill it with clothes) in the very rear could be problematic in terms of balanced weight for the tongue (you could conceivably lift too much weight off the tongue which you want to be 10-15% of the weight of the loaded trailer (e.g. - if 6,000# loaded for camping, you want 600-900# of tongue weight).
Others here will have lots more info - hope that's a helpful start....