If the HS looks the same as the 8rda+, I bet that it is the same pad. Check a site that has pics, like newegg.
To get the pins out, just pinch the clips on the back of the motherboard. You will need to heat the HS with a hair dryer or something for about 15 seconds to loosen the thermal pad to pull it off. Caution, it can get VERY hot to the touch.