strikemaster 4 cycle ice auger
If you don't go the 4 stroke route, look at the 2.5 HP Stikemaster Solo Magnum. It cuts ice like butter.
Unless you are looking at reopening a lot of old holes, then I would look at the Stirkemaster solo with the chipper blade.
What size bit are you looking at using 8"?
The reason I went with the strikemasters over other augers is that I like to stay mobile and I liked how light the auger was compared to others at the time.