My K5 was made in 11/74. Heck, I'll let it go for half that!
Well, the good news is this makes the bike you already own worth more, the downside of course is it makes the bike you want to own cost more!
It looks like a nice bike and provides a fine example of why, imho, stock bikes should be kept stock.
Boy, wouldn't you just love to hit the road with those 35 year-old rock-hard tires!