Standard pre-built shipping profiles for books

Would be great if you could set up some standardized shipping profiles for books. For example, we know books come in various sizes (4×6, 5×8 etc). If you could make it so we just have to input paperback vs hardcover, then the spine depth to calculate average weight for the size, that would be super helpful. (Most printers, especially for self-publishing, use the same type of paper & cardstock for covers, so I should think using an average weight would be fine for 90% of your clientele.)

It would also be nice if your categories of products were linked to the customs codes automatically instead of having to look them up each time we set up a new item.

Lastly, it would be nice if there was an option to just put the city & state to get a shipping estimate, instead of an exact address. Half of my shipping comes from my home address, the other half is drop-shipped directly from the printing facility, and I don’t have their exact address to do any kind of shipping integration with.