I need some opinions on converting my truck to disk brakes. I have already found a rotor that will work with a spacer on the hub, I had the spacer made, then i took the rotor and hub to a machine shop to see if they could re drill the holes in the hub to match the rotor, the hub has 6 holes and the rotor has 12, they said they wouldn't do it because they thought the hub or bolts could brake if i put too much of a load on them with the rotors that big (14 1/8"). the other choice of rotors is 11.1" and i think that's too small. What do you think?

here's some pictures of the parts
http://community.webshots.com/album/566266796krtyLu