congratulations on coming over to the dark (blue) side.
Its hard to love vinyl tops, but it is hard not to love the magnum 500s.
good news: ford front suspensions are pretty much unchanged from the 1960 falcon - 1980 granada.
bad news: they're a little bit different, but all parts are made for mustangs.
here is a tase of what you're up against
http://www.cs.odu.edu/~mln/fairlane/fairlane-rack/
this installation is based on the instructions at this page:
http://www.totalcontrolproducts.com/index_fairlane.html
little know fact -- ford 385 series (i.e., "429-460") is about 80 lbs heavier than a ford FE (390-428).
but 385s are a bunch cheaper than FEs. but FEs are much better looking ;-)