I think I'll grab myself a copy of that anyway! I can see it may come in handy.
I mostly got through that battle using the tried-and-tested method of running away and coming back again later. Oh, that and a handy sword with a frost enchantment which took some effort to get, after reading that it's probably the most useful weapon attribute in the game. "Took some effort" wasn't helped by the game's RNG seemingly liking to pair it with deathblow, and I read your warning elsewhere that the latter is probably not something I would want to use on a regular basis...