Received the spindle from Grigg today. Good to get back on that part of the project. Get down to my bearing supplier tomorrow and get the kingpin bushings and ream them to fit.
Another note for people doing the brake project; my calipers did not come with the banjo bolts, just the copper washers. Some brands do some don't.
This is turning into an unexpected problem. I have 7 auto parts stores within 5 miles of the house (5 different companies). Went to 3 today and nobody had any to fit. The lookups referenced "not available" or a Dorman # that isn't stocked anymore. Went through the behind the counter trays of universal brake parts and none matched the thread or diameter (both metric and SAE). Still have hope tomorrow with 2 good sources left.