I accidentally toasted my SSD

The error message is caused by a network issue. Try connecting the laptop directly to the network with an Ethernet cable and a USB-C to Gigabit Ethernet Adapter for a faster more reliable connection that bypasses any possible WiFi issues that are hard to troubleshoot.

If you have an M1 Mac, then you cannot use the startup key combinations to boot an M1 Mac as those key combinations only work with an Intel Mac. You instead must press and hold the power button to access the special Mac startup options.

https://support.apple.com/guide/mac-help/macos-recovery-a-mac-apple-silicon-mchl82829c17/mac

I accidentally toasted my SSD

Would you care to explain what exactly "toasted" is?

And,in order to help, what model/year is your device? On some newer ones, it is very difficult to replace anything because all the parts are sautered together. And that will make a difference in price obviously.