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Scale shape looks good but those fasteners are a bit "agricultural" ;) Thing is if you want to pin them traditionally with 1/16 rod, how big are the holes you drilled for the nuts n bolts ?

Shape is subjective as long as honing & stropping is not awkward but 1/4 is a tad thick. 1/8 is more like it.
Or, what the guy above said. :)
IIRC oak tannins can be an issue for rust so if you...