Or, taking ideas in a different direction... what could we do with Chuck Yeager's NF-104A using today's technology? Thinking to shoot for more power, shaving weight wherever practical, with wingtip booster rockets in place of tiptanks--and this thing needs to do it's zoom-climb to Astronaut Wings Qualification while still packing a decent attack radar and a pair of Sidewinders or maybe AMRAAMs for self-defense.
Oh, by the way, the bird I envision has to do all that WITH the extra drag of dragging around a two-seater's extended canopy bulge... Will an F120 fit without a total back-half redesign, or am I stuck at F414?