67 C20 front disc brake conversion

[Uglykato]

Good afternoon,

I have done some research in the forums here prior to posting this question, if I missed a thread that answers the below question, my apologies; my intent isn't to be repetitive.
I don't post on here often due to lack of knowledge, and my previous job being so hectic I didn't have much time to work on my truck.

I have a 1967 C20 long bed with drum brakes all the way around, my plan is to lower somewhere around a 4/6 in the future.

I am planning on doing a front disc swap and keep the 8 lug, from reading through the forums here it looks like anything in the 71-87 will bolt over to the 1967 with little to no modifications.

My question what else can I use? I read 88-91 2500 Suburban's will work, what about OBS trucks and 2000 and up 2500's? We have a fair amount of those being parted out in my area. appreciate any and all information