Yes the Deere manual is much better and you will need at least the two mentioned. There are some instances where you are referred to the sm2000 manual and some where you are referred to the 40 manual. You can get by without either of the last two. The IT will get you by if you are an experienced mechanic.
Woulden't swear to it but I'm pretty sure the reprints don't have the colorized flow charts. You have to get an origonal paper manual for those. The cd doesn't have them either.