Try the cube recipe, for 5 sockets? With Death in it, it will be an awesome charger weapon, dealing 1-2 points less average damage than a decapacitator, but having range 4! Maybe 4 sockets is useful as well, as HRs are expensive and Oath is still a rather decent runeword.
Or take the safe route and go to Larzuk, for 6 sockets and BotD... but who's using BotD in a glorious axe?
That's a TC87 weapon and quite a rare find, so I'm not taking it that easily.
I don't need help to decide the safety vs. gambling part of the question, I need to know how popular BotD and Death are in these axes.