I am SO jealous-I just saw this thread and almost creamed my jeans looking at the rig sitting on the trailer. NO sill rust, AND a factory glovebox light? What is up with that? Did some old lady's husband die who hadn't driven it in 25 yrs because of bad health sell it? How could you keep from thinking up a lame excuse and keeping it for yourself?
I caught the 'cruiser bug when I live in southern CA after college, and even then I don't recall seeing many un-molested rigs like that. Now, living on the Least Coast, a rig like yours just looks like a dream......
I would die a happy man if ONE of my sons shows an interest when they get older in my 'cruiser like yours. You must be very proud. Just make sure he drives and wheels it after the mods; don't let it become a garage queen (like another project I saw my 16-yr old brother-in-law kill slowly, never driving it...). But from the looks of the work you're doing, you two look smarter than that.
Congrats, you're both very fortunate!