WTB Power steering pump resevoir, shifter cable bracket (the one that bolts to the trans pan), and speed sensor hold down. Will pick up if semi-local Detroit, macomb, etc.
Sure: Brian at GBodyParts.com generally has some used ones, some complete with hoses when he finishes up his move. Currently he is moving and cannot be contacted most likely, but should be up and operating shortly.
If you want brand spanking new in the box then the following can help. nos4gn Buick Grand National Parts Home Page
HTH
I have one but it has a crack in one of the lines off the tank. Can be fixed if your good with fixing things. It also has a cap for it too. Let me know what you think.
HTH