Finally got a front axle mounted tonight!
With the drop and new spindles everything looks a lot better. I also took the time to have some snazzy brackets cut out with one of those hot rod water jet thingamajigs to reinforce things a little. Don't know if it will help or not, but I sure feel better about it!
And don't worry, if she looks a little off kilter it's because the 4x4's I was using as jack stands weren't the same thickness. It's nice and square with about 14.5 degrees of caster.