I goy my local Repco to get one in for me,the problem I had was the lower section of the belt that holds the retractable mechanism fould on the seat runner,two option not fit them or drive with my knees around my ears.
I opted for the first option.
And a point to think about,retractable seatbelts should be verticle in operation and on a 1200 the upper mounting point is behind the lower one.
Ade