I've had these thoughts as well. Supposedly, their electronics are a nightmare for swap integration, though.
I have heard that but when you don't know what someone's skill level is it is hard to go by.
I haven't gotten brave/serious enough to actually ask on a Land Rover page yet...
I know most domestic EFI is fairly standalone, key power here, battery power there, ground it, hook up gauges, put fuel to it and you are done. I would either go SBF or LS. Might be easier to run a carb intake and go something like a FiTech/Holley Sniper but roadside parts availability/support isn't there and more $$.
Gauges could be goofy, get a panel burned out and go Autometer if that gets too rowdy.
Then its down to how the lights and cabin electronics are wound into the system.
I believe the difference is pistons, cams, turbo. Mustang has different cams and the turbo is the big difference.
The Ranger version has some durability upgrades over the car variants too, different/bigger oil cooler (2 years later I don't remember if the car variants even have one) and a belt driven fan.
Bronco got a healthy power bump over the Ranger, I wonder what all got changed.