Jsm.z

Hello friends! I have 3 cars, a 76 280z (s30), 82 280zxt (s130), and an 04 g35. The g35 has a wrecked body but lots of good parts left. I have to junk the g35 soon and I haven't been able to find much info on using g35 parts on the s30 or s130. I'm sure the parts would have to be modified to go on either z but I'm fine with that.
Questions;
Is the g35 diff any better than my r200?
Can I use the g35 subframe?
Can any of the suspension parts be used on the z's?
*Thanks for you time everyone!