Go the Nissan or the Mitsubishi.. The new Toyota are both expensive and annoying because they "clean " the injectors every couple thousand kilometers and a literal cloud of white smoke is left behind you...
Mitsubishi have the best warentee..
Nissan have the best fuel economy...
At work I've driven all the Utes and the Mazda/fords are the best but terrible on fuel, worse fuel economy and expensive to fix..
I got the nissan becouse of fuel economy and also this is my 4th new Nissan and never had any issue's with them. My ute before this one was a Mitsubishi though and it never had a issue either...
The isuzu is a good ute as well, although the air cons play up on the ones I've used and friends that have one...
Although not a problem for you Toyota also cheat with he Hi lux and the 1st gear is really high and terrible for towing, I think they want people to spend double on a land cruiser.. Never get a hi lux as a tow vehicle or any hill you will be putting it in low range every time...
For second hand the bigger the motor the better so the old Mazda/fords or even holden's with the isuzu motor....
The bigger the motor the less gadgetry to get huge power .......
If you want just a run around and cheep, get a Great wall, they are unbelievably cheep and low kilometers , get a mechanic to check it out though first, really well....