This may not be a popular question but is there a version of the ColdFusion/Ajax Application wizard extension that works with CFBuilder 2018? or barring that an alternative that can create a skeleton CRUD admin based on a DB thru RDS?

You could fire up a really old, Copy of Dreamweaver - MX or version 8. It will work, the default spry assets maybe riddled with security issues by this point, but it works. Bonus, if you have the CD, it came with several trials of AJAX components for Dreamweaver.