I think your choice here is whether you are happy with using the knife for a year or so with chips in the blade which by sharpening with a coarse stone(ideally diamond if you value your time ) have been straightened out where rolled and where chipped the edge would be very rough and worse than a serrated blade....so might tear whatever is cut...which on a chopping knife is not too bad...so long as you don't use the tip area to choke up and skin game which has a pelt that could tear or similar delicate tasks.

The other option is that the chips are ground out to give a clean edge or at least are ground out to the extent needed to avoid tearing when slicing...if doing this I would go with Momaw and use a Belt Sander....they remove metal much quicker....but there is a danger with that if you have not practised with one...you don't want to chase your mistakes on an expensive knife...you will take years of metal/use of it...if you roll the edge when convexing on the sander but have cleaned away the chipped area...come off the sander and finish on a mouse pad and grit paper combination. If I can give some tips...do not drag the tip over the belt when giving the edge a pass...come away from the belt as you reach the tip...otherwise you end up dulling the point or turning the point into a knife edge thinness which can easily snap. As you get to the belly of the blade where it curves to the tip you need to have a steeper angle than the flat...it gives greater strength and is better for the chopping part of the knife.

To do this on the Sander you need to lift the handle of the blade towards your chest as you get to the belly...the best way to get it right is to colour the blade with a magic marker and as you do a pass...and only one pass...check for ink removal...then check the none sharpened side for comparison...that should give you an idea of the progress and shape created by your stroke.

DON'T START on the heavy metal removal belts...go with an old worn out belt or sacrifice a fine belt to ensure that you have the strokes right before taking lots of metal off with a heavy grit.

People say to use cheap knives to begin with but I would'nt buy knives just for the purpose...if you go steady you will be fine...and besides...you have a lot of removal to do with those chips so I cannot see you doing any harm...you may as well practise the skill now because those chips will need a few passes to remove them.

The black ink in the magic marker which will stick in the recess of the chip and will show up until it is removed. Use an eye glass to check this.

Good Luck and buy a cheap machete for some of this "stone" risk work!