First of all do you have the room and a place to put it ?
1. Percentage ? Hard number to pin down . 25% ?
2. I bought a 52" brake from ENCO when they were reducing inventory and they threw in free shipping . The brake was about $200 + CA tax . With the savings I bought a floor stand for the unit . It is a made in Taiwan unit and you can tell the difference in quality compared to a China unit . As with almost all of the brakes you will need a set of radius shoes to help make the correct radius bend . You might be able to find a good used one on e-bat , but the shipping is always the killer in the deal . DO NOT buy a HF brake . FWIW before I had the ENCO brake I made all my small parts using hardwood blocks , metal bar/rod and bending them in a heavy duty vice .
3. Easier...yes . The right tool always makes the job easier .
RB
BOOM !