I can do the bassline for Deliverance (I've actually got it recorded somewhere in coordination with the guitarpro file at mysongbook, dunno how much the GP differs from the record in terms of time) if you decide to do that. I like getting creative with little slide fills and stuff, since I use my fretless for mostly everything.
The bass wouldn't be EQ'd though. I go directly from my bass to the line-in on my soundcard, I don't use my amp since it distorts (although I haven't tried it with a very low volume)
I only know that and one or two songs off Damnation, for Opeth. (To Rid the Disease, and In My Time of Need..I'd have to relearn parts though because I haven't played them in ages)