I think those hops work better in an Imperial Stout.
1 oz summit 60 min (or FWH)
.75 clusters @20
If you keep the og in the range you suggested then you should only use half the hops I suggest. The hop schedule I gave would work well for an IPA too. I just think that will be a strange beer. I prefer hops with more citrus and less spicy/woody flavors for an IPA.