I needed them also so I ordered several feet of brass rod from McMaster Carr. The drive fan blade is pinned on with a cotter pin so it's an easy fix. The hardest part is drilling the cotter pin holes. An easy way to drill is to take a small file and file a small flat spot where you want the hole then center punch, this makes it a lot easier to keep the drill bit from walking off a round shaft.
By the way, I promise I'll get to your parts list.