Buffalo, I don't believe there is any site for accurate real-time pink sheet quotes. To the best of my knowledge, they are quoted only once a day. However, they are sold constantly.
The way that I've used to buy the pink version of a stock traded on the TSX is as follows: 1. Get the TSX quoted price. 2. Look up the conversion rate $C/$US by going to Yahoo and typing in ^CCV. 3. Multiply the TSX price by the conversion rate to get an approximate idea of what the pink should be worth. 4. If you want it immediately, add a penny or two if you want to buy it. 5. If you are willing to wait, check the price range for the last few days and determine what you want to buy it for.
I haven't had occasion to sell any of the pinks I have bought, but I've been told that you just reverse the process. My experience is limited because I've only bought five canroy pinks in the past year. It's been a satisfactory investing experience.