Advice for parking in NJ?

Hi everyone.

I’m in a pretty difficult family/ financial situation atm and am strongly considering living out of an rv near wyckoff nj with my boyfriend. Does anyone know any spots to park around there ? Preferably on the cheaper side. I’d also like some general advice as to how much utilities are when you get one with a shower/ toilet/ stove/ etc. as we would be looking for ones that include all those utilities most likely.