Chas,
Your 83 and mine are pretty similar! Mine has a little more bling and lights though! LOL! It has a velour seat also, vs leather!
I have never ridden a bike this big, I hope it's as nice as I have been reading about. I have my work cut out for me though. Carbs a really gummed up, gas tank has a little rust/scale in it, and it hasn't run in 15+ yrs from what I can tell from the maintenence records. It had a new front tire put on at 68k, 1994, odometer now show 73k. I got it to crank over after getting a different starter. Seems to have compression and spark.