I made the mistake of buying the biggest van I could afford which was great for space inside, fixed bed, seperate shower/toilet and a lounge area big enough to fit my entire family in. However whilst staying on sites is good I find it limits our activities in terms of day trips to places of interest. it was a pain trying to squeeze in a 7.5m for parking.
So now in the process of downsizing. Panel van with fixed rear bed but also the option to make up a single in the front. Underslung LPG, solar panel, large insulated and heated water/waste tanks also large storage under fixed bed. I got the xl wheelbase, my theory being if I can park 6m then the extra 35cm should be ok too.
This should fit into my vision of full time touring and wild camping as much as possible.