I would love to see it as well. How did you go about making the drawings? Did you use calipers and measure a pre-existed lower?
Never question a machinists mind. It has a set of rules usable in our world but a concept formation and thought pattern all its own...
I used a digitizing probe on an existing lower I already own. The probe pretty much runs back and forth touching the part and creates little cloud points which you can use to make a model in CAD. From there you can modify it anyway you want, even ad something to engrave. I am a student at Ivy Tech and am just learning how to do some of this stuff, but so far I can make pretty much anything I can measure. The probe is like cheating though. If anybody has ideas of something (within reason) they would like to see made, shout it out..