I want similar, and am looking at the bigger Japanese-market MPVs – Toyota Alphard, Nissan Elgrand, Honda Elysion or Stepwagon, etc. Quite a few importers who can bring them in. They’re very similar in dimensions to a SWB Transporter.
They tend to have sliding seats on rails (so passengers can either have lots of legroom or be pulled forward for for load space), and rearmost seats that flip up sideways (so you still have a tall, long space for bikes) and they can all go flat to become a bed (albeit not a perfectly flat one). Plus two sliding doors, tailgate rather than barn doors – all the things that people seem to pay extra for on their Transporters.
Makes a bit more sense to me than making a van more comfortable/refined trying to turn it into a family car.