Searching for AK47 Replacement Parts Info

Hello, I'm currently in the process of restoring an AK47 and am on the hunt for some replacement parts. I'm specifically looking for information on where I can source quality AK47 replacement parts, like barrels, bolts, and triggers. I've scoured the internet, but it can be overwhelming with the multitude of options out there. I'd appreciate any recommendations for reputable websites, dealers, or even any personal experiences with specific parts. It's crucial for me to ensure the parts are genuine and in compliance with all relevant laws. Thanks in advance for any guidance you can provide!