Decoding car

[duckychan]

hi all i;m from asia thinking of importing a s15 spec r luxury i went to view the cars already three of them ended up on my list.. anyone care to decode for me what versions are they? depply appreciate it

Engine number:SR20608013W
Chassis number:S15035458

Engine number:SR20DET426857
Chassis number:JN1GBAS15A0029022

Engine number:SR20441764B
Chassis number:S15029826

and also what the difference between a JDM s15 n a Aust s15 or NZ they call it i think