1965 Dodge Dart 270 Wagon

These early-a's don't need power steering in my opinion. With some new steering and suspension parts, a quicker ratio like 20:1 and a swaybar, these little car are very fun to drive. Probably take off 40lbs. from the front of the car by going to manual steering too.
I've been considering that option as well. If that's the direction I wanted to go do I just order a manual box from the guys over at firmfeel and it's a drop in? Do I need to swap anything else? Does anybody else offer a 20:1 box or rebuild kit? Looks like a 2 week lead time and a pretty hefty investment to go that route.