GSX1100 Wiring

Hi All,
Can anyone tell me if i will run into many if any problems swapping the complete wiring loom from my '85 US import GSX1100E (GS1150E) to one from a UK spec bike of simular age. My present loom has been modified by the last owner when it ran nitros and its a bit shot so thats why i was hoping to swap for one in better shape from the GSX1100E. Has anyone tried this or knows of any problems. looking at the wiring diagrams there seems to be no front break switch on the US spec bike other that that they look very close.
POB1135E
Can anyone tell me if i will run into many if any problems swapping the complete wiring loom from my '85 US import GSX1100E (GS1150E) to one from a UK spec bike of simular age. My present loom has been modified by the last owner when it ran nitros and its a bit shot so thats why i was hoping to swap for one in better shape from the GSX1100E. Has anyone tried this or knows of any problems. looking at the wiring diagrams there seems to be no front break switch on the US spec bike other that that they look very close.
POB1135E