Yes you will have to remove the emergency brake arms - its bolted on, not pinned so its not an issue really. The radius rods are held to the axle by the same bolts that hold the backing plate on but can remain on the axle. I recently pulled mine off and havn't put it all back together yet so I can't comment on the emergency brake springs but I hear they are a bear to get back on. There is a thread about that here:
https://www.fordbarn.com/forum/showthread.php?t=63872
good luck!