More info is needed.... but I'll toss out a rough guess of don't do it.
Do you have a tank big enough? They don't do well in new tanks, so make sure it's well cycled and has enough filtration on it.
How long have you operated a large life support system? Learning big system dynamics takes awhile by itself, let alone dealing with new system issues and new livestock.
Do you have the ability to pay for upkeep (food, water changes etc...)?
Is this your first try with sharks? Black tip reefs (I assume you mean those since black tips are beyond even most public aquarium's ability to keep going) are not great starter sharks. I'd suggest starting with sharks and rays that are easier to deal with.
