Nice truck salvo!!
It's good to hear another 'bolt is back on the road.
If this were my truck I'd get a refund on the block huggers and look for a pair of factory ram's horns or other stock manifold that will fit your situation. They'll actually perform better on your stock or mild 350 than the headers and they won't need continual tightening. Should be able to run your stock steering box too.
Just an opinion though, good luck with whatever you decide to do, oh, and welcome to the Stovebolt pages too!!!