Drum vs Disc Brakes on Torsion Front End

[Northwest Outlaw]

I will be starting the front disc conversion shortly on my 61 and plan on leaving the torsion set up. I am using the McGaughy's 6 lug disc and drop spindle kit and I picked up a '76 disc/drum MC and booster off CL for cheap. Also replacing the shocks and rear springs to complete the lowering. Jump over to my build thread (linked in signature) to follow my follies.
You'll have to double check but I think if you get new spindles you can use 73-80something disc brakes if you can find a good set. I went all new as I'm new at wrenching and wanted as few variables to mess up as possible. Good luck with your adventure, i'm staying tuned to see what you do