spindle/suspension/drop question

[68bowtie]

i could use a little guidance on part selection. i have a 68 c10 that somebody converted to 5-lug disc brakes using 71-72 spindles and brake parts. i bought a pair of mcgaughy's classic drop spindles (PN's 6072L and 6072R). i plan on installing the drop spindles but keeping all the 71-72 brake parts. i'm also replacing all the suspension parts (tie rods, ball joints, etc). my questions are:

1. will all the bearings and brake parts bolt right onto the drop spindle?
2. what year tie rods/sleeves and ball joint parts do i need (67-70 or 71-72)?
3. i ASSUME my center link is the original 68. is there a way to verify that? i think the answer to question 2 depends on this...

thanks