I whipped up some fly screens for the van windows so we can get some airflow into the van at night while it's in the current temporary-build state. I made small and large versions for both front windows. They're dog ugly and future versions will be much tidier.
Three bikes squeeze in under the bed no problem. The bed height was determined by the minimum space I could fit my bikes standing vertically with the quick-release wheel removed. Once the roof is in, there is enough space on the bed to sit upright.