Is this the physical baby stuff needed?

I'm a big planner and trying to plan what I need for my coming babe. We are in a small 1 bedroom apartment and don't have a lot of room for stuff, neither do we have much money since my husband is in school and in unpaid internships for another year and a half.
Also, I know I could save money with a convertable carseat, but we don't have a big car, can be used as a rocker and such when in a public place, and by the time they grow out of it, my husband will be in his career and we'll be able to afford another car seat.
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I plan on buying used (except for car seat) to help with expenses and because I believe in "reduce, reuse, recycle" whenever I can.