The fact that you're pulling an Explorer tells me that you intend doing some overlanding and hard to get to places. Personally I would go for as few bells, whistles, push, pull buttons, limp mode and all the other achronyms on modern day vehicles..
Toy spares are available throughout Africa as are those that can fix them.
Points, plugs & condenser for me! (Well almost)
Mind you, I wouldn't like to drive my 80 daily at 4.5 km/l.
The weight of the vehicle should provide proper towing stability. The V8 says it all and there should be no hassles with power for the job. If you are content with the simplicity of the interior the vehicle should fit your requirements fine.
The isue lies with the fuel consumption. There are other vehicles out there that will do the same job probably cost you less and have a much better day to day running cost.