After my second trip to Ikea, things came together nicely.
I am happy with the final result. I do wish I could get these hard-wired to a switch instead of the awkward plug-in switch. I also don't want to have to continually re-adhere the wires to the bottom of the cabinets so I may get some sort of mechanically fastened raceway to keep them up there. Regardless, it is a big difference.