HA! Funny guy!
No, actually, the Justy has no real rust because it came from Florida. I just think that the rear seat, spare tire, carpeting, AC hardware (not kidding) and other junk will easily add up to 100 pounds. Maybe I'll take out all HVAC hardware while I'm at it - you know, since I just got the heating working, it's high time I ripped it all out.
And, by the way, I love Google so much that I found your message before it was even posted on this site.