Its going to be really tough to find wheels that will fit all of your criteria.
First off, why do you want to stagger? Is it because you saw staggered wheels in Super Street?
Secondly, s14's can fit really wide wheels, even up front. Why not go with something around 17x9 +15 all the way around? You can rotate your tires, and avoid understeer that excessive staggering can cause. Heres a good option..http://phase2motorsports.store....html
If youre stuck on staggering, the only real option you have are 9 hole (both 4 and 5 lug)used wheels. A great selection can be found at
http://www.rbwheels.com