You can still find original SID chips selling on eBay, it's just that they're expensive now. Another strategy is buying cheap faulty C64 boards and ripping th

You can still find original SID chips selling on eBay, it's just that they're expensive now. Another strategy is buying cheap faulty C64 boards and ripping the SID from them, but it's risky. The SID might be dead (or not there at all).