Well you are in a bit of a pickle! Sadly, the beep code is telling you the RAM has a failure, and the RAM is soldered to the logic board. You might be able to find someone with the needed skills and tools to replace the bad RAM chip/s.
The other direction is taking the blade SSD out and using an external drive case like [https://eshop.macsales.com/item/OWC/MAU3ENVOYPRO/|OWC Envoy Pro]
Then you can transfer your stuff over to another Mac.