Java Snapshot 23w31a Proposed Villager Update

I'm a non OP farm builder playing survival in my own derpy way! t I have made a few messy, inefficient trading halls & it took lot of time. Recently I came up with my own hot mess of a breeder/curing /trading hall and I mean a hot mess. I've gotten killed by my own creation. But I'm proud of it as it's my own hot mess creation.

Positives: 

I like certain enchants being found on villagers in certain biomes. As in real world, we trade with other regions/countries because they have what we may not, and vise versa. Mini village halls could be created to further a worlds' story, builds, exploration.

I love the idea of the Wandering Trader being a Seller & Buyer. Fits with the true intent of the Wandering Trader. (see above) He looks for stuff to sell to others.

Love the Buff to the diamond distribution. Currently, its painful and then added on that deepslate makes it nearly unbearable and kills my motivation for playing

******Some Ideas to balance this potential Nerf:

 Adjust level requirements for book combos & and application, don't double ding me.

Enchanting table & Anvil buff. Instead of maxed cost or level restrictions; add mats needed such as  emeralds, quartz blaze power...don't double ding on level restriction, level requirement, and maxed out repairs.

Buff  mining, looting structures & exploring.. Deepslate.....a motivational killer!

Make this a world rule, like Fire Tick, Keep Inventory etc,  Let player decide the scope of difficulty.