In the year I've used the car, every day, nothing has gone wrong with it. The engine will have to be reconditioned in a couple of months time as it's burning oil almost as much as it uses fuel!
The SJ has proven remarkably reliable, it's not the most comfortable on-road vehicle but can't be beaten off-road. It's mpg is high thirties, early forties if kept below 50mph.
The soft top fits like a second skin. However, being a Santana she was built in Spain rather than Japan, as with the normal SJ's, subsequently the metal is thin and liable to rust if not watched closely!
Were would you get a reconditioned engine or even piston rings and gaskets etc to do it yourself.