Yea 1/8th is about as thick as I'd go for just about any culinary knife anymore. Traditional french culinary knives are more rudimentary than the revival Sabatiers, thin, flat, and no frills. Thinner than what you see post turn of the century 1900's. Great knives that last a lifetime, I still use one I got over a decade ago. The steel does "feel" soft on the newer models and with the thicker blade geo, just asks to be rolled or chipped. I'm curious to see how yours is coming! Sounds like a great project!