Sounds like it should be "saws-giver & taker"......
My response to the seller would have been that he entered into a binding contract and that his only option was to sell the saw, no ifs, ands or buts.
I once had a seller stiff me on a vintage STP display rack. They were about an hour from me but would not give me an address to pick up the item and never shipped it. I sent several e-mails and finally a certified letter and hit them with negative feedback.
The response I got was I never paid, but my check had been cashed three weeks previously. I called the local sheriff and filed a complaint and he sent a deputy out to speak with them and I ultimately got a refund.
To the original poster, I do not know what type of a vehicle you drive, but it would take many tanks of fuel to cover the 2750 miles from you to the seller in British Columbia.