Personally, I'd go for a pale ale. The Mirror Pond clone recipe, which uses Cascades throughout, could be a good starting point.
viewtopic.php?f=25&t=17147&hilit=mirror+pond+recipe&start=8Just adjust the main bittering addition (85 minutes) lower or higher, as needed, to keep the bitterness around 42.
I'd keep the rest of the additions the same size, but I do like hoppy tasting beers. A recipe with additions throughout will give you an idea as to the bittering quality and the flavors and aromas added by the 30 minute addition, flameout addition and dry hops. That's what has been most helpful to me.