If money was no object then I'd buy a great van body (good luck) and rebody your chassis back to a van, then paint it the original colour and restore it. However..... you could possibly spend $50-$70k doing it.

You have a cool ute that has it's own identity now, so you have to ask yourself what YOU really want.

If you want a ute, stick with it.

If you want a van, maybe selling the ute and buying a good van is a good option.

Think about it for a while..... time is your friend in this case.