Hi,
I'm working a lot with YT templates and can positively confirm that, of course, it's well possible to implement the UIkit grid (and other) features in HikaShop. If you want to do so shop-wide, it'll mean editing numerous HikaShop views. But here and now you seem to be referring to product listings in "div" format only.
Accordingly, you'll need to edit the product / listing_div view via the HikaShop backend and add the UIkit classes at the right places.
Other than that, it must be assumed that...
... you have read
this documentation
,
... you've got the basic settings in the HikaShop backend right,
... you are familiar with HTML, and with at least reading/interpreting PHP.
You should have no problems then.
"Other solutions"?
YT templates are not bootstrap, but they do include at least the BS 2 "span" feature (even if not much more***). So, before going through view mods, you may first try setting HikaShop's "Use bootstrap design" to Yes and see what it looks like in the frontend.
*** = You'll see that e.g. HikaShop's "Popup mode" set to "bootstrap" won't work... you'll need to use "mootools" instead.