If you do not want to keep up with your own spreadsheet, but still want your own priority list, you can create your own google spreadsheet, and put this in the first cell:
That will import everything from Ryan's spreadsheet in real time to your spread sheet.
Then you can delete column "C" and input your own priorities that only you can see.
Now you have a spreadsheet that auto-updates availability, and has your own priorities.
If you want to get really fancy, you can go to "Insert" -> "Image" -> "By URL" and input BrinckLink picture URLs like http://img.bricklink.com/P/0/8128stk01.jpg
for the stickers. Then you have an auto-updating spreadsheet with pictures. :-)
I believe this is auto-updating as per Google's help, but I have not tested it yet. I shall try to be online a bit early on Sat to test. Also... I'm not sure if the ace sheet or the ryan sheet is the "master". Hopefully this is helpful though.