Caleb, I'm with you on this idea and I come from the footwear industry.
In the late 1970's I lived for a few years in Banff Alberta and got mildly into climbing. The go-to boot for the Swiss and Germans who lived there at the time (ski instructors during the winter, climbers in the summer) were Vasques. Made in Italy.
Good leather, steel shank, stiff sole. What we did back then was buy them new, put them on and do them up tight, then stand in a bath of warm water until the water seeps through completely. Then get out and keep them done up tight for several hours (don't do a lot of walking, you are just trying to mold them to your foot).
No reason why you shouldn't do that now to try to shape them to your own foot.