if you are looking for inspiration for a Lustria campaign, many many years ago someone called Royston Crow created a WFRP1e campaign. Fairly recently all of the parts were recovered and are now hosted over at... http://www.grognard.org.uk/Scenario/Royston%20Crows%20Lustria/ hopefully this will help

I kept it after the Storm, and after finding a copy of the Storm of Chaos WFB book I managed to thread several references into the plot. I also loved running it, I found I had to do quite a lot of re-writing of it to keep the plot moving for the players. hope it goes well for you

Sounds like a great idea, we currently play 2nd ed and the thought of this sort of kit sounds ideal way for us to try 3rd ed. Still a bit daunted by how much we'd need to buy to play a game, but guess you don't need all the box sets?