Upper and lower A arm replacement question.

[In The Ten Ring]

My upper A arms are rusted through, at least on the driver's side. It's not so bad as to be dangerous I think but might as well replace those.

Are the welded-tubular pieces worth the extra money? I'm not building a "racing truck," just getting mine back onto the road as original as I can. Better handling would be nice but I imagine if I went for better A arms I'd have to update everything else, right?

If I go for stamped ones, would NAPA or Advanced Auto have what I need or should I get it from a vendor?

Thoughts?