Ice climbing pants in long lengths

About time to replace my pants, be using some MH conduit pants for many years. After lots of patching and repairs, time for some new ones. Not finding to many companies that offer waterproof pants in a tall/long. Looking at the Arcteryx Gamma MX,First Ascent Mountain Guide, or FA Grand tour pants. None are waterproof...but I think would work well for ice. Anybody have good or bad things to say about them, any more water resistant than others? Any other suggestions for a hardshell pant in a long?

Paul,

Beyond Clothing is custom sized.