There are many kinds of inkstones, so don't stick to the end. In fact, Yishui inkstone, Songhua inkstone and Chengni inkstone are all acceptable, and the price is not high.
As for ink blocks, there are some famous ink factories, such as Zhai, Minnan, Cangshan and Tunxi, with different prices.
Tips for purchasing: Compared with Taobao, the price of Calligraphy Jianghu Culture Mall can be basically determined.