Is this the latest version?
https://dl.dropboxusercontent.com/u/6574868/neverdelete/N Terraria 6.zip
Cause I played it and compared to the wiki is lacking a lot of races and I've not seen any custom items or mobs so far. The basic skills for the demon besides the first one, first aid, and demon scythe appear as "?????" And deamon sythe at lvl 15 or so is dealing almost 400 piercing dmg.
Also I noticed that the quest to get other classes like summoner (used? *) requiere you to have defeated planterra or to have access to other npcs that are not easy to get and that may require a lot of time into the game (unless you rush it) and you have to be a "terrarian" all that time. So I wanted to suggest that maybe make the basic classes available from the guide and then you can do a second class change with other npc that are harder to get so it's not as frustrating.
*I saw there were on the guide other classes like ranger IDK if you decided to put all the classed available trough the guide but took almost all the classes except for 3.