Fantastic resource! Logical, beautiful, and useful! As a DM, I will likely make tweaks no and then, especially to include some of the fun, flavorful common magic items from Xanathar's Guide. That said, this is the perfect framework and should make that easy. I know this is "pay what you want", but I put money on the table and I don't think you will regret doing so as well.
[5 of 5 Stars!]