Daz won't give you "special permission" to share the meshes, because once they make one exception, that opens up a huge can of worms for them with thousands of items, and hundereds of content creators, each of whome owns their own copyrights to  thier products.

This topic pops up regularly, with the same result.. the cost is still way too high, and you need modelling skills and software to accomplish the watertight model, so there's a big time investment.

Also, if you want a clean finished item, the costs go up even higher.... the cheap prints really look bad, and they are very fragile.

 

Way too many people take way too many things way too seriously.