Magnumforce Chromoly Tubular K-Member Anyone ?

i wanted to have more information on this whole thing ! i know that theres few of them who as it .. and i have few questions !

- is it bolt on ?
-price?
-what do i need to know ?
-do i have to change my disc brakes to wildwood or i can keep the old ones ?
-General satisfaction

http://magnumforce.com/magnumforce_tubular_kmember.htm