Congratulations! I have been kicking around the idea of running a campaign in a fantasy setting, but focusing on the Cthulhu Mythos.
Sort of Call of Cthulhu meets Dungeons and Dragons. Well, needless to say, the news of a BRP book that can be adapted to a variety of settings was very welcome news to me.
Now, the news that people are going to be publishing settings such as yours only makes me even happier!
I can easily see making use of your supplement, and am eagerly looking forward to it!