Nite's I think had the HO engine, but i'm not 100% sure on this.
My 91 could smoke anything I put it up against except sports cars. *shrugs*
It was way faster then my 95, and my 95 has shorter gears. Everything else is the same, and the 95's have the HO engine.

I know my 91's engine is still rocking the house in another truck right now, and he's got more power then he knows what to do with. Just a 302 as well.

As for susspension, or anyhting like that, nothing special becides different badging and paint.
It's tough to find NITE parts though, if your looking for specific things.
Oh, they had NITE floor mats as well. Forgot about that one.

Ford later had a package simmilar to the NITE package, it was called the "blackout" package.
But the general concept was black as the NITE. No chrome, cept shiny wheels.
Mine came with the Aluminum wheel which were extra, and a PITA to find.

oh forgot.
3200 is higher then blue book price for the truck.
I can't even get 3k for my 95.
Offer him 2, see how he rolls. =)
If its not rusty, and runs good. It would be a decent truck.
I want to find a nice NITE to throw a Diesel motor in and have a trail truck.
I want to be able to hide in the bushes when i turn the lights off, cause there is no shiny stuff. hehe. =)