Stylized Set Element - Attempts on Texturing (S.O.S.)

Somebody please rescue me from this texturing mess of normal maps without ambient occlusion maps and Mental Ray! (I believe it's my fault that I can't fully understand what the issues are and how can I solve them; my inexperience with UV texture mapping - first time I'm doing this - and the effects of being awake past 3 AM for the second night in a row do not help me as I try to perceive how can I go around all the apparently insignificant setbacks that Maya has put on my path and figure out what can be done from this point, which looks a lot like a dead end to me).