395 is the max damage on a Kurastian Asp base item (if I'm reading the DB correctly), so the damage roll is very high. The int/vit/crit make for a really nice combo of stats, but I'm not really familiar with what a WD would value.
Based on a quick scan of the AH, mojo with similiar stats and worse damage numbers are listed for between 4 and 7.5 million. This is no guarantee that they are actually selling at the price, but I would be hesitant to let this go cheaply. Perhaps once the AH is patched and the underlying damage is searchable this may be easier to sell.
I have not seen any mojos with higher than 88-277 dmg, thats what Im using right now... (bought it for a steal at 50k) but mine only has dex and mana regen. The one you have is extremely good because the damage is insane and it has INT/VIT/CRIT and even the +4k health globes is a nice bonus
Only thing missing is Mana Regen.
Not sure what that would sell for though, I'm broke at the moment otherwise I might be interested