Originally Posted by StanzaDescendant
Body panels are a go. Drivetrain and engine not so much.
Basically this. The U13 Bluebird was sold with a GA, SR, or diesel driveline - you'd need to do a ton of custom fabrication (though it was offered with a SR20DET at one point, which is a fun driveline). I believe the motor/transmission mounts are in different places on the Bluebird, hence the fabrication - but I may be mistaken on this. And of course the obvious ECU and harness differences, not to mention either importing axles or having custom axles made.
I'd imagine suspension may swap over to a 1st gen Altima, though count on also swapping the brakes.