Top 10 CPC Question

Hello,
I am in charge of running the CPC of many ad groups, each with 1 keyword. Each obviously has a different cost to get to position 1 – eg. "mortgages" might cost you £10 a click, toothpicks might cost you 30p a click.
Is there any way to find out how much on average the top 10 positions cost for CPC so you can set the price at roughly what you want at the beginning instead of setting CPC at £1 and seeing if it is too little or too much for where you want to be?
Thankyou.

See original post by nick01uk