[FWB]

you don't need a book, and there is nothing wrong with the crossmember, get the crossmember proped up off the bench and let the rotor swing down and bolt it together.
i put the heidt's on my car and trust me it will be fine.....the lower arm as stated in a previous post, will droop a little at rest, and the upper will be angled toward the spindle too at rest....to quote a politician......trust but verify....