Front suspension rebuild or replace

[sportfish69]

I have a 69 gmc stepside and I am wondering if I should rebuild the original suspension or replace it with a newer model. I am upgrading to a V8 engine and want to put disc brakes on the front. New cross member from 90 suburban is available. Help please. What direction should I go?
If I go with original equipment I will replace brake booster and MC with after market kit with new spindles calipers and rotors.
If I replace I would want to use the BB and MC from the donar along with power steering gearbox. Might we able to use donar rotors and calipers but probably go new.
Posted via Mobile Device