I know the feeling..
Hey, if I did not say it eurekastar yes that is wonderful restoration on your Kirby D80. I am very impressed. Kirbybag, you are so right I know the feeling, I do love the older Kirbys, my Aunt Mary had a 1949, yes a 509 that I used at her home. That was fun, the old black handle was coming off and my Uncle Laurie, Aunt Marys hubby, yes he was man, replaced the plug. But it still ran like a dream.
My neighbor on the farm who lived north of us about a half of a mile, had a 560 that I would use, when she bbsat me as kid. With that 560 I liked taking the head off and using the hose and she would let me read her book that she had with it and I would actually do some of the things like the book told you to like make the Kirby into a tank, it was fun, except I could not always put the head back on correctly so she would have to help me. Everyone I knew who had Kirbys never bought anything extras with their machines, except the floor brush head.
In our little farming community most the neighbors I knew had Kirbys. When my folks bought the D80, three other neighbors bought one as well. A couple of them moved on and bought new Kribys but missed their old green one. So I got them each one to use when I was in college and they were so thrilled.
David