Faark that sucks big time
I'd be pulling the engine, giving it a forensic type cleanup, checking to see if the timing chain tensioners, valve springs etc were damaged then transfer as much as possible from your original engine.
Fingers crossed you can make a decent engine out of the 2
These guys have engine parts/head gasket listings
https://www.rockauto.com/en/catalog/...ad+gasket,5412
Cheers