A few notes.
If we are going to make this a "tekvasion" then I think a set of doubles would be the minimum required for the dives, ideally a set of doubles and 1 deco bottle.
I would limit the destinations to the US (Hawaii included), Caribbean, and South America to help keep costs down and travel logistics simpler.
I would love to do something in Asia (Palau, Truk, Thailand), but given the ~1 time frame and my other trips already planned, I really wouldn't be able to swing it financially.
If I had a #1 choice it would be Key Largo---tech wrecks, reefs, costs, clear water, tech gear logistics--all in a nice little package. From the Keys you can also plan day trips up to Pompano or Key West to dive the Vandy. it also allows for flexibility in terms of duration, you could make the trip 4,5,7,10 days and not blow a huge amount of money on airfare.