Around here, shops won't touch parts a customer purchased let alone install them. Two reasons why are liability and profit. First, if they install parts you bought off of Ebay, or some bargain-basement.com site and something happens, where's the first place you'll be going when the part fails or damages something else? The shops would rather get the parts from known distributors that they have some sort of guarantee with. Secondly, they stand to lose some bucks installing your parts. The parts they get from local suppliers usually get a nice mark-up added to the cost before it hits your final bill.
I'd imagine it's the same in B.C. or anywhere else in Canada.
Try shopping around. You may find a garage that's cheaper than the one you quoted earlier. Just because it's $670.00 at one place doesn't necessarily mean it's the going rate all over town.
Better yet, just drive across the border into WA. $670.00 canadian is like $20 US right?
That's a steal of a deal
j/k
89 Mustang Clutch is worn (HELP) 
its true, i havn't gone enywhere else to get other prices. Actually i wanted to sell my car, but now that i think of it, i see that if i somehow can fix the clutch, it is a good reliable car. (There is a reason why Mustang is a True American car) not like these new cars that uses japanese engines or parts. I'll stick to my stang and will cross the border to see whats going on on the other side of the world. Maybe i should work in U.S and bring the $$ to Canada. So in a month i can buy Dodge Viper. 
