Options I am looking at:
Lose it and forever regret it. I wish I had of kept my FJ73 with the 1HZ conversion. Admittedly my work list was a fair bit shorter because I had done it all when I sold it.
Draw up a 5 year plan and rebuild it. You will be able to get VDJ7* cheap as chips soon, but whatch how the prices of mwb and swb going up now.
Part of your requirement was "for 4 people". A 73 won't do that for you comfortably.
I think the down under models had the rear seat moved back 100mm. I've had 3x17 yo basketballers in there and I sat in there a few times myself. Quite comfy for 2 IMO.