XT 'Hollowtech I' left handed crank wanted

[teamturboGO]

Pah! The left hand crank on my 2001 XT 'Hollowtech I' chainset has gone- it keeps on coming loose during rides. I'm trying to avoid buying a completely new chainset so does anyone have an XT 175mm Octalink crank for sale? Doesn't have to be new, NOS or whatever but it mustn't be damaged at the spindle interface like mine is.

Thanks