I'd pronounce it 'Kin' not having any experience of the Chinease language. I wouldn't change it, it was her given name so she should stay that way, it's not just difficult names that have this problem, my name is Lindsey & out here it is more commonly spelt LindsAy, so can be pronnounced that way too, drives me nuts & has been mis spelt & prounounced all my life but I just correct everyone
Lindsey
NZ Expo London 13/10/07
OH Job interview/offer 17/10/07
EOI submitted 21/10/07
EOI selected 24/10/07
ITA handed in 03/12/07
Arrive Wellington 11/01/08