Well, since Micker replied saying "you can adapt flexicontent template uikit just remplace boostrap class for uikit" I thought it was possible!
Yes it is possible
but then you will need to some custom layout for fields in order to use UIKit in them
i think it will be considerable templating work
About layout for hikashop pages,
i am not sure that i understand you
hikashop is a different component right ?