Unless you have plenty of money to throw at it i would advise against it but it can be done with a lot of time and patience. A question why that engine you do know its a pretty wide engine expensive on maintenance there great engines why not go with a VG30ET the ones out of the Z31 300zx its been swapped in a 280zx before and make great power. Another thing is why not just swap in a L28ET or simply turbocharge your L28 all you need is L28ET wiring harness, ECU, Turbo, Turbo exhaust Manifold, Intake Manifold, 280zx turbo injectors, put a 3" mandrel bend exhaust and enjoy.