I'm going to disagree - I LOVE having cabinets and would never do without them. I can keep everything packed and ready to go in the various drawers and cupboards, find things easily, keep the van organized without having to shift bins about, etc.
Total weight of my cabinets is under 150 pounds - I weighed my largest set before I put them in the van and the case was 30 lbs.
I can (and do) still carry multiple 4x8 sheets, as well as large items, all while carrying 4 people (2 adults + 2 kids).
For me, cabinets are what make the van. I have no interest in camping in a bare van - it's the ease of opening a drawer to get my dishes, or of opening the large top cabinet and having my food and cutting boards organized, that makes it that much more enjoyable.
Whatever you decide, have fun!