Front end rebuild

My questions are:
Can I use the lower control arms that are on the car? YES
Do I buy inner and outer tie rod ends for a 70 dart or 73 duster?
either or - I do recommend the larger C body 11/16 and a new tie rod sleeve to remove flex
Do I buy lower ball joints for a 70 dart or 73 duster? they are the same
Are there any places that sell a complete kit with Moog parts call around
or should I go with poly bushings? go with Poly - i just took my 12 year old poly bushings out and they were fine, the one rubber part, the LCA bushing was rubber and shot!
What idler arm do I buy?70 - but i do believe they are the same