As long as they fit
I would measure the height of the existing spindle and compare that to the one proposed to be used for the swap..
do the steering arms come out in the right place and length to work..?
I think but not sure the ball joints are the same size in big fords..so the new spindles should just bolt in..Fords did not seem to change dimensions all that much in the big cars..
As far as changing the booster as long as the new master cylinder bolts up it should work..
Bottom line do some measuring of what you have laying about so to speak..
My thoughts on how to go about this..
I have tried most all of it and now do what is known to work..