I think id go with the horn. But before anything, I'd put the blade on a 1K stone and see about that rust on the tip. Hate to waste time working on it if the steal is rusted too much to save that tip. If tip is not savable it would work well for a cut down of just the tip or regrind the tip to a round point. Its got some hone ware but the bevel looks straight so it might hone up to a nice bevel still. JMHO. Good luck.