If all else fails, as mentioned above, one could add an ARB air locker or a Harrup elocker if so desired and you can't find a truck equipped with the rear locker set up the way you want. The new crawl control systems are pretty sophisticated and work well for most crawling that most people will do. That being said, having a rear selectable locker is a really nice option to have available, if you are planning on crawling the vehicle and will be lifting one rear wheel while doing so.
Being in the west, for what I do, I would want a rear locker. I just sold a triple locked 80 series landcruiser, and bought a used 200 series landcruiser. It has crawl control, ATRAC and KDSS. I will be adding a Harrup rear locker to it if that tells you anything.
