1. what types of bushings should i use for the control arms?
Energy suspension makes nice replacement bushings. Or if you are scratch building arms, try using half a small 4-link bushing with the right ID for the cross shaft you are using.
http://www.hm-engineering.com/
2. would uniballs be the easy way out for balljoints?
Contact Taylor at Barely Legal Fabrication. They are making nice Uniball kits, for under $300, that will bolt right into your spindle without modification.
3. what would be the easiest adaptable spindle/hub/bigbrake kit could i use with a ford bolt pattern? [got a v8]
There are big brake kits out for Toyota spindles. Also, Mustang II has a very big following, and will likely have many different brake options with competitive prices since everyone makes them.
Thats the best I can do.