Cap gun 4, dread 4, Jump calib 4, cap rep 4, armor comps all to 4, DI 5, Sentry 5, EW drone interfacing 4, Sig analysis 5, all gunnery support to 5, though some chumps try to cheat with surgical strike 4. Oh and cap ship 4 too. And of course max capacitor skills, should go without saying, as well as the absolute basics, i.e. electronics, engineering and so forth, though in most cases they're prerequisites anyway.
Will net you maybe 9-13bn on current market, but, if you start now you'll be done in what, two years or something
. Prices could be anything by then.