New Dana 60 Help please

Just talked to the guy about the truck he's sure it's a W200 it was a 4x4.

I found a guy with a 73 Dodge charger parts car for the driveshaft will that work?

It will have to be cut to length.
The part to check is the front slip yoke to see that it works with your trans.
How much does he want for his driveshaft?