Late model brakes for my '67 C20

[CrashBob1]

Maybe it's my inexperience with this site but I can't seem to get the search to work for looking up this subject in previous posts.

So here's the question: What year, model components would be best to use for converting to front disc brakes? Money is an object at this time so what's the most economical route?

OR...........is there a later model chassis that I could roll under my body without too much modification.

I am still in the "mental" stages of planning for my truck, so ALL advice and suggestions will be appreciated and considered.

Thanks in advance!

CrashBob