Can't tell you much about the seat. The handlebars look correct, just angled unnaturally (was the previous owner taller?)..Headlight and kickstart look spot on. Rear footrests are hard to see due to them being down in the pictures....put them up and post a better pic of them plz

I have a 74, and the striping on the tank is indeed decals rather than paint.
Honestly, this bike looks very pristine.....there's not gonna be a lot of work on her from what I can see....
But then again I'm comparing her to my 74 that I basically was given....
Good luck my good man! Keep us posted....and if you want to know anything and everything about these bikes....
check out
http://www.oldjapanesebikes.com" onclick="window.open(this.href);return false;
Ian Sandy is his name...he's a fellow Canadian out west from where mine sits. He published a 'field guide' that outlines what you need to see in the different years. He's restored a number of these bikes, and has been an invaluable source of assistance for me as I got mine from sitting for 27 years to flying down the highway at top speed, lol....
He's your man....
Peace! And again, best of luck!