Why scratch? I always had a high requirements for a wood quality and fitting quality. Unfortunately, even expensive kits were never that close. After getting a first pack of boxwood, I would never go back to any inferior wood. Hence, only scratch. Not that scary though, I do most of the parts from scratch anyway. It's a pity that kit producers do not offer a wood upgrade. For a serious build, cost is spreading over a number of years, so is it really so important? Speed of the buil