1, as long as you find a suitable formal proxy architecture, it will be no problem. Pay attention everywhere. Don't just want to be greedy and cheap. Only looking for cheap ones will definitely suffer.

2, the general price is around 600 or above.

Illegal periodicals generally take advantage of some people's greed for petty gain to fish, so be careful.

Finally, based on my own experience, I will share it with you. Look for reputable businesses, such as those with third-party transactions. This is the main thing, followed by commercial information. This is safer, such as paper mesh. The publication is more formal and the price is cheaper ~ ~