Well, I wouldn't pay 100 dollars a cord for a firewood log. Something that I had to go get, haul, cut, split, stack etc. Maybe you and the the owner of said wood can come to an agreement-- if he trusts you to take the log and process it and tell him/her how much it actually amounted too in terms of split volume.
Sounds like the owner of the wood might be expecting 5 to 6 hundred out of the log based on what he was told, so it might be a hard sell.
offer what you feel it's worth (I'd give 25 a cord if it was easy access, easy to load the log, close to home, etc) take it cut it up, split it, stack it and go back to the owner of wood with a check.
Or, maybe barter, something like say give me the log, I'll bring a third of it back to you cut and split.
and just as a side note, .. I wish I had oak, or locust, or pecan, or some of those other good woods to burn, but fact is sometimes people live in areas where there aren't those types of wood in abundance so we burn fir. and Douglas fir isn't real bad firewood. Lightweight, splits easy, seasons pretty fast, and has about 20Mbtu's per cord vs say Red Oaks about 24Mbtu's per cord..
