I hope firstly that I am not flogging a dead horse on this. Secondly I hope that im not making this more complicated than it really is.

ok. i have a 63 c10. the front brakes are stock manual. I have all components from a 71 c10. spindles, calipers, rotors, hubs, booster, m/c and prop valve.

This is my plan:
I want to get new drop spindles and new calipers. i want to go with 73 for these parts because suspension and steering parts are cheaper.

my questions:
1. what ball joints will mate the 73 spindles to my 63 control arms?
2. can I use my 71 rotors with 73 spindles and 73 calipers?
3. any info or advice on mounting the 71 booster/mc/prop valve setup in my 63?
4. can I use my existing brake lines or will I need to bend new ones?

Thanks in avance and sorry if im sounding dumb I just want to wrap my head around this before I start taking things apart.