Looking for someone to rebuild the Upper and lower control arms, 70 Dart with factory disc brakes

You also want the upper joints changed, correct. Seeing you're doing this I would have who ever does them sand blast and paint/power coat. I know of a power coating place in Tennessee that races Mopars. They might be able to do the whole job for you. When you work on something you want it to look like you've been there and show all your hard work. And I'll tell you I would always pay a premium for a Mopar with a good front end.