No experience but I looked it up out of curiosity.
Ericson 32-2 published displacement 8,800lb. Round up to 9000lb. 9000lb divided by 500lb = about 18hp.
Yanmar 2GM20 = 16hp @ 3400rpm 18hp @3600rpm. Can buy used for about $5K on Ebay
Beta 16hp @ 3600rpm.
Beta 20hp @ 3600rpm
E32-3 is 1000lb...