Trying to find age of my SJ import

[Imarr]

Hi all hope all are having fun. I'm trying to find the correct age etc of my SJ410 import the chassis number that's is on the log book and the chassis rail apparently is to short but it is the only number it will not contains 10 digits. I've tried Trax my local Suzi dealer and they aren't interested. The history I have is it was first registered in Iran and the first owner said it was 1982 but can't remember what month. I would like to know however what year it was built. As I say I can't get any joy with the chassis number. In 1986 when I bought it I had to ring Suzi tech department because it wouldn't start without me giving it a direct feed of 12v so they helped me with that but they don't seem to be available anymore. Anyone got any ideas? Thanks Ian M.