a few questions about blazers

[Bladeboy1998]

I am looking at a 1972 blazer in carrollton ohio. I was talking to the guy and he said the spid is gone, but it has/had ac, and it was a military edition. I didn't think there was a ilitary edition of the 1st Gen blazers, I thought that was 84-86 cucvs. Am I wrong on thinking this? I am a little bummed that the spid is gone but I would not go all original so it dosent really matter. He said there is a little rust around the windshield, I have heard NIGHTMARES about fixing this. I am new to body work but have a buddy that can help.
http://akroncanton.craigslist.org/cto/4955064610.html
it doesn't look like a military blazer, more like a light olive.