Greetings Glynn!
I just recently purchased the tank bracket that you are describing from
Ace Fogdall RV in Cedar Falls, Iowa. If my memory serves, the total
cost of both pieces was less than $40.00. You might try an e-mail to
Florence and Christy in the parts department, I am sure that they could
supply the details. You can find the parts department contact
information at:
http://www.acefogdallrv.com/
It is evidently a current Airstream part that should be available from
any Airstream dealer.
Good luck with your search!
Kevin
Kevin D. Allen
1964 Overlander International/1999 GMC K2500 Suburban
1978 Argosy Minuet
1975 Cadillac Convertible (towcar in-training)
WBCCI/VAC #6359