need to rebuild front susp (where to purchase kit?)

[63frankintruck]

I started cleaning up my front suspension yesterday to get ready to swap my disk brake conversion and noticed the rubber pooched out on the A frame shafts. (Arg.....)
With the disk swap kit came drop spindles, ball joints, and tie rods. Looks like now I will be rebuilding the suspension as well.
Going to also need, front coil springs as the PO installed drop springs and cut 1 coil off of the drop spring. When I put the truck on stands, before unbolting anything, I could litteraly move the spring about 2 inches up or down inside the spring pocket by hand. (just floating in there)
My question:
Where is a good place to purchase a kit,and or drop springs or should I just order pieces from Auto Zone/ maybe junk yard?