Nurse practitioner program in NJ?

hello there! i'm planning on taking the NP route, but i just don't know where to start and have so many questions about it. i have a BSN degree. i'm currently working as a critical care/tele nurse for almost 5 yrs now. I work full-time (12-hr shifts) and has a 5yr old daughter. my questions regarding the NP program are:

#1 is it better to do it on-line or in campus (time management wise and expense)

#2 how long does it take?

#3 about how much will it costs?

#4 what school is good for NJ? (near ocean county)

thanks in advance for your response