I would argue that even if you had the enchantment Anvil, you wouldn’t have too much fun making builds, because the build crafting in this game is quite minimal because the enchantments overall don’t enable a lot of stuff. They are mostly resource efficiency things and so on, they mostly just allow you to use your weapon a bit more efficiently.
There’s a few fun ones though like the Explode on death and bomb damage and bomb not used but they aren’t super impactful or gameplay changing.
I think there’s some changes that need to happen before we actually have build theorycrafting which like you, is perhaps my favorite thing in RPGs.
I wrote a whole post about it and if you have a few minutes to read it and give it a vote up I would highly appreciate it. Regardless it’s an interesting read ive been told.