If they were exactly the same then parts places would sell them with the same part number. I searched thru catalogues and I couldn't find the control arms listed anywhere. Obviously not a lot of aftermarket demand, and not even sure if the dealer still sells them, if you have checked. You're best bet is a bone yard, or try to call some classic car restoration places, they usually can get anything. As far as bushings go, I'm not sure if you can find a kit anywhere, but yeah try classic car resources, since it is getting to be somewhat of a classic.