All you need is an assortment pack of 3m wet/dry sandpaper, your stones, and some mineral oil.
Scrub it clean.
Lay the roughest paper on a flat surface and grind down the handle flush with the rivets, which will get a nice shiny(but scratchy) new finish. Sandpaper the handle until everything is smooth, then sandpaper out the scratches.
Refinish the blade with the sandpaper. Start with the coarsest, stop at 800, single direction strokes, with a little oil and it'll look great.
Polish the handle with the fine sandpaper until it's buffed(somewhat...this isn't stablized burl, after all), spritz with water, let it air dry, buff it again. oil the handle, let it dry, oil it again.
Grind in a new edge, sharpen it up.
BAM. Nothing involved but time and care. I love doing these.