Saaz is pretty awesome, but I find as a flame-out or dry-hop it can get grassy. For that reason I like to keep Saaz at 15 minutes or more in the boil. I like Sterling which is an American Saaz substitute and has a little more fruity notes along with the spice and also Magnum is a high AA hop that gives all the big noble aroma and flavor with a little floral and fruit profile as well.
For an IBU where you'd like to get the IBUs up, I'd use Magnum at 60 minutes and SAAZ throughout the late additions. A single ounce of Magnum at 60 will give you over 45 IBUs and it takes 4 ounces of Saaz to do the same thing.
You might consider an all-Pilsner malt bill or Pilsner/Vienna, keeping the color light and the flavor malty for a GPA - German Pale Ale - maybe even use a Kolsch yeast.
The more I think about it, the more I like this idea.