Yes 250 is but you would be broke no meat ney for tuts for max plunder or to volley to make cash. I tried to give a lil breathing room. But correct at 250 mil this can be done.
Open 12 dorms add 12 jocks upgrade to level 4.. when you save up money go straight for T4 aka 600mil dormees after that skip t5 aka 10b dormees and buy t6 aka 40b dormees