compression is way too high in the 2ZZ my friend... You can run the Supercharger, or N2O (if it's a wet system) but to run both, you will have to reduce the compression or you will detonate if you are not careful.
you could run both stock, but it's not reccommended unless you are running racing fuel (100+ octane) or have something else in place to avoid detonation such as water or alcohol injection. I would definitely add fuel management of some sort too (see posts on the Power FC) Adding a deck ring or pinning the sleeves would be a good idea too, otherwise your cylinders will eventually crack from all the flexing.
If you run both an S/C and N20 on a stock 2zz, you definitely need to keep the boost levels low. and not run more than a 35 shot.
High compression + nitrous + supercharger = not good...
to really see the benifits of such a setup and make it reliable, you will need to beef up your block, connecting rods, stiffen up the valvetrain a bit, and you will need some good low-compression pistons with some total-seal rings.