The rear are very easy. The front can be a pain without the right spring compressor tool. If your brother has ever had the front bearings done, everything might not be rusted up too tight. If not, air tools would make the job easier.
If front bearings have not been done, consider doing them while everything is apart. A part shop will be able to press out the old, and press in the new bearing into the knuckle for about $15 each.
If the front is rattling at all, consider replacing the front swaybar end links while you have them off too. $12.50each at
http://www.fordpartsonline.com/