I don't remember exactly how far the manual setup opened, but it is real close to the same.
As far as the headlight mod, I thought I found directions and a diagram for it here on this site, but now I can't find it. The general idea is to find the low and high beam headlight wires in the loom that crosses the drivers side inner fender. You tap into the high beam wire, don't cut it, and use that to trigger a relay. You wire in the low beam wire to the relay and an accessory 12V+ for power . When the high beam is on the relay then is triggered to turn on the low beams, which then runs off the accessory 12V. This is a very crude explanation, and not necessarily enough info to accurately wire the mod in. It is not expensive, or hard to do as long as you know the basics of automotive wiring, which I'm certain you do. I'll keep looking for the diagram and as soon as I find it I'll pass it on.
Since the stock wiring is soooo light, it would be very easy to go a bit farther and use the stock wiring and switch to power both low and high beams direct from the battery and on heavier wire through a couple relays. I didn't do this, but maybe this winter sometime when I need something to do.
Don