neither 'her' nor 'him' have to refer to chapuz:
'If somone sees Chapuz, tell higurashi that I want to see Blacksmith.'
okay, weird sentence. But it could also have 1 of the 2 changed:
'If someone sees Chapuz, tell higurashi that I want to see Chapuz.
'If someone sees Chapuz, tell Chapuz that I want to see Blacksmith.