Ravenfrost, and any source of cold damage is just not worth it imo.
I've tried ravenfrost, pride, lawbringer etc. Just don't use any cold damage. It feels bad horking less, and you're hurting your farming #'s. The killspeed increase doesn't make up for the lost corpses from what I've seen.
If you need cannot be frozen, use Horazon's Boots. Losing Gores/Travs sucks, but your alternative is using a cham instead of new magic damage jewel in helm, or running some weird ass non runeword weapon/armor. You could use trang's belt, but I'd rather use upgraded goldwrap to hit the ias breakpoint on full gold find build, assuming you aren't running highlord's or loh.