Parts swapping for 73 mustang.

I just started a large total restoration project on a 73 mustang. I know I can swap rear disc brakes from a 94 to 98 mustang to fit my 73. Was wondering about other swaps such as a rack and pinion or maybe even a k member or sway bars. If I can save money scavenging bone yards instead of buying everything new will save me tons of money. any help or ideas will be greatly appreciated!