prado OK? oh yes
I agree with Tony they are a bit small for 4 people all your stuff, then all the stuff you will need for the trip.
They are more than capable thou. I live in Australia and people love them here, they do the hard stuff and the easy stuff. You often see them in the outback too.
Off course do the basics beforehand. Tyres,suspension.mechanicals,snorkel and lots of water !
Have a good trip
""Why cant we all just get along?"" - - No forget that ! why can't you all just get out of my way ?...