HI
The conversion times are pretty long at moment ,i was looking down the same route ,extra wide rock roll bed etc
Now im planning to keep as minimal as possible with 7 seater and a pod (home made ) with the option of popping out the rear seats and putting the pod and another to make similar to https://www.fantasticcampervans.co.uk/conversion-toyota-alphard-1.php till i decide another route or come into a cash windfall
hope it helps