You only need to use long pull levers if you use direct pull v-brake style brakes. Normal cants have the same pull as a caliper.

Setup and adjustment on a modern cant is easy. Check out Sheldon's site and have a play for an hour or two one afternoon with some cantilevers then you will be familiar. If you are not confident get someone to show you. There are short mechanics courses. The myth that cants are difficult to set up is self propergating and stops people from trying. Much like the myth that you can't ride a bike 1000 miles .

These super deep drop calipers are a solution to a problem for some old bikes without cant bosses or running 700cc wheels in a frame made for 27" wheels.