Lambert conformal conic projection CRS setting and reprojection in QGIS 2.6

I am currently having some trouble adding the CRS to a vector file that I want to re project to WGS86/UTM. The shape file is using Lambert Conformal Conic Projection; ITRF92 horizontal datum and Clarke 1866 ellipsoid according with the metadata. I will like to know how to define the original CRS (since in QGIS Lambert CCP/ITRF92 does not appear as part of the available reference systems...

thanks!