Uniprint 8.3/8.4 still require a shared queue on the server, and this is where you set those defaults:
1. Right click the queue object in Devices and Printers.
2. Choose Printer Properties (note: you may have a fly-out menu for Printer Properties if you have the same driver and port specified for more than queue; welcome to Microsoft 2008).
3. Go to the Advanced tab and choose Printing Defaults.
4. Make your job-level changes here and Apply/OK to commit those changes.
6. Use the driver's Configuration (or similar) tab to configure the device (RAM, trays, etc).
From there, just ensure that Copy Printer Settings is enabled (this is the same from UP 8.2) and build your package.
Did this work out for you?
Sorry I haven't gotten back to you. I guess my notifications were not set. That Printer Property / fly out menu is tricky. That is were I was thinking that not all my queues were showing up in Devices and Printers.
If you're using Windows Server 2008 R2 or better, an easier way is to use the Print Management tool instead of using the "Devices & Printers" option. This is Microsoft's preferred method of dealing with printer objects on newer versions of Windows Server and it will actually show you all your printer queues as individual objects and not the shared/single icon view that the Devices & Printers method does.
If this feature is installed/enabled it can be found under Administrative Tools -> Print Management. If it's not installed/enabled this can be easily done via Server Manager.