-1) you can't make the aoidos character unless you have a reincarnation available and the aoidios jar as well (1 per character) and to complete the aoidos story-line (till secret paths), also need to be at max level to make a reincarnation ( as I remember).
-2) check the character creation menu for that, (I think aoidois can do all classes)
2-2) nope, only Arabic players got name change scrolls before the merge. yes the items are bound, if you make a new character you can still get the same items that you got ( new players boost-up)