ANY WW2 Historians here??

Agreed - Bockscar's fuselage is there (or was when I was there about 25 years ago)
The whole plane is there!
If you're even kinda interested in aircraft, the USAF Museum at Wright Patterson AFB is a must see. Totally free, and completely worth the trip!
My grandpa was a crew chief on C40's and often fixed P38's during WWII. He "flew the hump" many times and said that as a crew chief he could do every thing a pilot could do, but he could also replace a fuel pump mid flight.