I'm planning on putting the Vq30de into my 86, now living in Brisbane but was in NZ where we put a VQ30det into my brothers S14. Sat back further compared to the sr and didn't weigh to much difference (weight was further back). Only thing to watch is the water pipe that comes from the back of the motor can fowl on the Brake booster, We ended up using a starlet brake booster on the s14 as it was a lot smaller and no more problems. Exhaust manifolds can be fun.
Would not even bother with a VG variant, to big and heavy.
Will use a front wheel drive variant for mine and the spare box from the S14. other then the 350z box $1500+ there are no bolt up options. Rear wheel models are available just a little harder to find.
I am a nissan fan but can't get past the look of the 86 so decided to combine them both
