We’ve got a converted VW T6 SWB with a pop top. It’s got the usual cupboards, sink, cooker, fridge and 3/4 rock and roll bed in it. Had a Mazda Bongo with a similar set up for a few years before that.
Most of the cooking is done outside but it is nice to be able to make a brew inside. Sink rarely gets used though.
Our 10-year old sleeps up top and travels up front so we can store SUPs, inflatable kayaks, etc. in the back while we drive. 3 bikes go on a tow bar mounted hitch. I am tempted to get a small trailer with bike racks on the top.
You can get a thermal screen to go around the pop top which makes a big difference. Keeps the heat in and condensation down when it’s cold and cooler inside when it’s hot. We also have a diesel night heater, coldest we’ve been down to is around -5.
For weekends we’ll take a pop-up toilet tent for the porta-potty and also storage. If we go away for longer we’ll take a Decathlon 2.5m x 2.5m shelter.
Benefit of the pop top is that the van is still under 2.1m so fits under most car park height barriers.
Over the years we’ve cut down on carrying loads of stuff that we don’t need and getting the most out of the storage space so things that get used most are easily accessible.
I’d consider looking at a LWB next time and also other makes with a squarer body shape like the Nissan’s, Vauxhall’s etc…