Alright boys I'm back with some updates and pictures!
@dgi I'm actually living in the Triad area also so it's nice to know there's another datsun fan around here somewhere.
I did manage to find the numbers stamped into the body and they do match so I guess I'll just toss that 260z tag in the parts box and forget about it.
So luckily I managed to find a really clean 240 that needs new floorpans and that's it for any major rust. As far as parts go I got everything I needed except the intake, carbs, and carpet.
The engine and transmission were disassembled however so the engine was sitting in the bay just like the pictures and the transmission was sitting in the back but its an auto so I need to swap it to manual.
I just picked up an intake, carbs, and 4 speed with all the parts needed for a swap so I'll definitely get some more pictures later this week when I start to take everything apart to swap the trans.