Help, Front end change

[twoskies]

Good Morning
ive got a 1966 c10 short bed, frame was twisted 2 inches
no worries, found another shortbed frame

main question is im going air bags, ive got the A arms from my 1972 c10 was going to cup

ive got access to either a 71 or 72 frame with disc brakes to take the front suspension off , or just about any year squarebody, like to stay with 6 lug, just looks better to me but no worries switching to 5, have a 5 lug rearend off an obs truck to change the rear,
which front suspension will be the easier swap

Thanks for the Help