There is really no primer/book so to speak on doing a Model A Ford. Yeah, there are write ups of "How I did Mine" - but often useless. One of the many Ford suppliers like MAC's Snyder's or Bratton's have every part you would ever need. It is only limited to your wallet thickness. As far as doing the body work - nothing difficult as it is straight forward body work, conventional steels with few significant compound curves and the work is done with conventional tools such as welders, torches, body hammers and dollies, grinders, standard hand tools and the usual painting equipment. You mentioned trunk area - these suppliers have trunk skins or complete lids, gutters and then for quarters and cowl bottoms, patches.