Well I have a 70gal. 48"long 24"tall 13"wide so do you think it would be able to go in there?
Personal - if I were to use a tank that size for a shark - it would be for a pupping tank only. If you get a recently hatched shark(up to 2 months old), then that should be okay for up to a year only. The shark should still be under 18" before moving it to it's final adult home.
To quote - Scott Michael here "When it comes to choosing a tank for a shark - bigger is not only better, it is imperative".