I am rather surprised by your comments and have some concerns with them.
The C130K was basically an E model and the main changes if I recall correctly was the floor change which allowed the RAF to use AD systems from obsolete transports.
I also understand that the intergration of the Auto pilot was a night mare as was some problems with the radios.
No where before have I seen statements that the J models were delivered in a non standard situation.
Could you please table the changes made to the J.
Thanks
Col