I'll be able to front the cost of the No Light wand.
So I take it I'm carrying the wand? Do you want me to always use it at the start of any combat, are you going to give me some kind of signal, or should I just use my own judgement?
Sure.
How do I get Darkvision for 2,000 gp?
You
have darkvision, from the mineral warrior template. The Ring of Darkhidden is 2000, though...
So I guess my first turn in most combats will look like this:
1) Activate wand/cast No Light
2) Take total cover from Tower Shield.
You might want to get one of those rings Nanshork, if you haven't already... and maybe some Darkvision.