Let me see.
On deck deco chamber, dry bell on A-frame launched through moon pool. Dynamic positioning system able to maintain position to better than 1 meter in any sea state you will be doing underwater operations in.
Onboard compressors for air, O2 and He, with ability to fill tanks or surface supply any desired gas.
Inspection and work class ROVs.
Range greater than 4000 miles.
Gormet chef.
Enough money to hire a pro crew to operate and maintain all the toys.
Hmm, now where is that lotto ticket with the winning numbers?????