I'm pretty sure that wasn't an option for 78/79 in the Broncos or F-series. However! You could get cruise control and intermittent wipers!
My Bronco didn't have intermittent wipers, as it wasn't a common option people got, but I snagged the setup off a mid 80's truck and put it in. Works great!
If you manage to find a good aftermarket power window setup that would be nice, though I kinda like the ability to roll the windows up and down when I have the battery out or in case it dies, etc.