Electric actuated rear remotes are not the ideal control for a top & tilt set or various implement cylinders.
Ideally you want to be able to feather the controls, pretty difficult when you have a valve that is either open all the way or closed.
Don't get me wrong, it can and is done all the time. But that doesn't make it the ideal method.
When it comes to cab tractors, your best way to go is the factory option IMO.