The Fuselage that F-82 carried is Version "P-51H",
you need to get two fuselage from "H" version.
ThereĀ“s a vacuum form version, I dont know who
makes it , but theres one.
The tail from the twin version is little bit longer on the fin,
in the real version is about 20" taller.
If you like to make a twin mustang with the available version,
you would not get something real, Wings, wheels, blades, spinner and copkit
are diffrent. Only same thing is the tail wheel.