Join Date: Oct 2014
Location: Minneapolis/St. Paul MN
Not trying to be a jerk here, but if you can't grind out those knicks, you probably shouldn't be messing with hand planes in the first place.
Typically you're not going to sharpen the whole bevel. You just sharpen/polish a micro bevel which speeds sharpening as there's less metal to remove at the very tip of the blade. However, at some point that micro bevel will get too big and you'll need to re-grind the primary bevel, If you can't grind out those knicks, you won't be able to re-grind the primary bevel when the time comes, so it's a matter if you have problems now or in the future.
Either get a grinding wheel(power or hand cranked), or get some kind of coarse stone(diamond, water, oil, etc...) that can quickly grind a primary bevel. My preference is a diamond stone for this, but anything course enough will work.
As far as polishing the back is concerned, google the "ruler trick" and that will save you some time.