12,4 * 60 = 744, that's a no-flare landing. Any Boeing could sustain that equally well and it's been tested during base training many times, I'm sure.
But that is not your point, understood. Luckily we have no Airbii or Embraer to compare, hope it stays that way. Although I do think they'd result in less disintegration. Designs that are 30 or 40 years more advanced in stress engineering and CAD application should pass the crash test more gracefully.
Building a theoretical fuselage and wings is not probably black magic, joining them together however could be. The 737 is done the way it is done, it is done well enough for a trustworthy airliner.