Well, I think for the price, Gigabyte UD3P range sounds appealing. I will research further.

The longest stable CPU GTLs I found were at -55,-5,-55,-5 which still doesn't seem right, but narrowing the gap gave me less stability (faill during 8K), while keping it at 50mv aways seemed to get into the 10k tests. Either way, it's still a big improvement over 50,10,50,10 which failed during 1024k, and I suspect I will be able to drop the vcore down by 2-3 notches.
One thing I did notice that seems to make me question if this is the right setting is that when I tested at +10,+10,+10,+10 and -20,-20,-20,-20, they gave me a rounding error, all others just rebooted (no BSOD either)