So it's a coconut/rum/oak/black IPA? Sounds a little busy to me, with some potentially clashing flavors.
If it were me, I'd either skip the hops and go coconut porter, or maybe skip the "black", and change the hops to really tropical/fruity varieties (Citra, Galaxy, Calypso, Meridian, etc) to go with the coconut & rum theme. Serve it in a tiki glass with an umbrella.
Actually, a rum barrel, coconut IPA sounds like something I might have to try out a test batch of. Maybe with a little hibiscus, too. Sort of a Scorpion Bowl IPA.