I'll clarify the zero charges questions.
The PC finds a wand shop, the PC enter the wand shop and 'l'ooks at the wands. The type of wand is displayed and it's price. a Wand of wonder [1gp] is lying here.
The PC walks to the wand. The type of wand and it's price is displayed. a Wand of wonder [1gp] is lying here.
The PC picks up the wand using ','. You pick-up the wand of wonder( 3 charges )[1gp]. The shopkeepers booms something.
The ingame text is not exactly as above, I was typing this from my memory.
This was the case with all but one wand in the specific wand shop.
I have a savegame just after all the wands in the shop were bought. I can upload it if needed.
You'll just have to 'w5' or something until the shop restocks. {There must have been a clearance sale, so don't know whether he will.:-P} I can do it too if you need the svg, save you some time.