That's just nuts.
As of last year there's still one in late SJ at Shorty's Truck yard. That might be West Conshoken. I think the heads are still on it but inytake might not be. It doesn't matter for what he'll need anyway.
There was an '86 SJ at yard in Philly, but even if the Jeep or engine are still there, I doubt they'ld pull it and ship it.
Just start scanning the AMC and jeep forums for something closer. But there's two options if he's desperate.