hmmm...that is indeed a dilemma Green. My first inclination would be to say that if you are concerned about maintaining the best value on this keris for possible future sale you may want to leave the ensemble as is. Frankly it does not appear to be all that extraordinary an example of this keris form so i think the "historical" aspect of this keris (i.e. the Frey association) is perhaps an important aspect of it's commercial value. "Correcting" the ensemble might give you a more culturally acceptable match, but it would only yield a rather ordinary example at best. I might consider repairing the nose if i thought the repair could be done seamlessly. Otherwise i would leave it alone if it were mine.