Are you talking about the d15 non vtec to or the JDM d15? if its the JDM d15 then its actualy a little better then the z6.
Solsociety.com will be your best friend in getting all those interior bits, theres always someone parting out a car on there. If your gonna swap i wouldnt bother with the b16, and swap in an LS motor. Youll get better numbers and the LS can be found for alot cheaper then a B16a2