The price ranges from $125 to $195 per month, depending on factors such as CPU, RAM, storage, and bandwidth. The challenge lies in finding hosting providers that currently offer this service.
What you require is a hosting provider that has enabled IPHM (IP Header Modification). This feature is essential for creating "spoof servers," which are necessary for most amplification and reflection attacks, particularly if you aim to achieve powerful results.
Considering the scarcity of hosting providers allowing IPHM, your alternative is to establish your own hosting infrastructure. This is where the actual costs come into play, which the other users were likely referring to with their quotes.
In that case, it is advisable to consider colo (Co-Location). This involves renting space in a data center (DC) for your own equipment. You would need to purchase your own server(s) and networking equipment. Additional charges may apply if you decide to use the DC's network. Installing your own switches and routers and maintaining complete control over them is necessary to enable IPHM on your machines.
Without the ability to spoof the IP address, attacks are often easy to mitigate and trace back to their source. Consequently, there has been a significant effort to prevent the services and hosting providers that previously allowed such practices.