I have never made a razor but from your CAD rendition it looks like the "tang" or as some state the "tail" is way too long or out of proportion extending out wise beyond the scales in photo 1.
I will echo what others have said here................being a knife maker does not make for a good razor maker. Two different things altogether in my book. But I am not here to discourage you young man just to say do your homework on razor anatomy; buy a few old razors to study the geometry; play with the razors to get a feel of how a reputable well balanced razor is; then do some rough mock ups and learn from mistakes.
Like some stated don't buy into those hex screws as a way to pin a razor together! I thought I would like that but after having a razor with it it was rather annoying. Also I don't mind a spacer in place of a wedge if done right. My best razor that has held best has a spacer rather than a wedge. Bevels at 17 degrees and uniform and not looking like someone ground it out freehand in a grinding wheel!
A lot to learn but your 18 almost and many a year to do so! I wish I was 18 again and had the resources you young people have. I had a library and card catalog! I did not really even have internet in college until I was finishing! It would have opened up so much more for me I am sure.
Good luck and keep us up to date! Who knows......you may become another PRC or BBC!