Narrow size ice climbing boots

Hi! Can anyone suggest a manufacturer that makes narrow width plastic boots - size 12B for example? Boots are intended for snow and ice climbing. I've been renting koflachs while going through school, they were available in several various widths. Now that I am ready to buy my own I've found that Koflach went mainstream and only makes the one-size-fits-most boots. Most shops I've gone to suggested that I wear three pairs of socks or that I take the boots to a ski shop and have them heat-formed into the correct shape (alas, that also voids any warranty). Neither of the options appeals to me. Any advice would be appreciated.

Cheers,

Scarpa's and LaSportiva generally run narrow in all their boots by design. I've found that Scarpa's are almost too narrow for me and I have a narrow foot!