Repower 1978 Bombayclipper31

Hi we have a 1978 Bombay clipper 31 that has a bad volvo MD2B diesel .
what would be a good replacement .
thanks

I would definitely look at going electric. For a Volvo Penta MD2B of about 22 hp, one of https://www.torqeedo.com/us/en-us/products