Upper control arms

Doing the disc brake swap on my 63 valiant . I have complete spindles from 73 dart my question is ..

Do I buy a set of dart upper control arms for $200 that will need ball joints and I all ready have new set of poly control arm busings to install .

Or do I buy the new aftermarket control arm set with all 4 name unknown ball joints as a set for 280$

My past experience in life is saying buy factory part and put moog joints in ...

Thank you smitty