Would really appreciate knowing if any Korean shops in Hua Hin, or where I can buy good kimchi?

Thanks !

Is there such a thing?

You can buy it in villa market

There's a new(ish) Korean restaurant in the basement of Market Village. You could probably get it there or for take away.

Buy it at Makro much cheaper than Villa Market or Tesco. Its on the left hand side as you go past the frozen foods and next to the pork counter.