Need a Full-sized Wireless Mouse ~ 2k

Hi,

I need a new wireless mouse to replace my old DeathAdder. I am used to larger mice, and would like a full-sized one. Extra buttons on the side would be nice.

I was looking at Logitech M510 which is available for almost 2.6k on eBay, and is imported so I will not get the 3 year warranty...

Could someone please suggest some alternatives for around 2-2.5k?

Thanks!