Thanks for showing the style you want. It makes a big difference to giving good advice. I personally would shave it all off and go for a full topper.

This pic confirmed it for me

http://img64.imageshack.us/i/2templea.jpg/

I was going to suggest 2 small partial for these corners and 1 small partial for the crown. But it would be too tedius and work to achieve mediocre results. Yes, it would be a shame to shave that thick stuff at the front.

The very front hairline doesn't look too thin, you could even get away with having 1-2cm of your own hair there and put the topper behind that.