Review my itinerary for Kona, please

Here is an itinerary I picked up from CC posted a few years back. Will this work in the 8A to 6P tendered visit on Dec 12? Suggestions welcome!

Pick up rental car, drive highway 190 to Waimea then 250 to Hawi.... Enjoy stunning views, then explore the rainforests there before heading down 270 to 19...

Passing Hapuna, Waikoloa and Kua bays with their resorts........

Stop and see the Hilton. Then back to Kona at the pier to drop off the car off.. it will be about 4 pm ??.........

In the afternoon you will hit bumper to bumper, crawling traffic between the airport and the pier. It can start around 2pm and sometimes stretch all the way from the Kua Bay turnoff into town. If you're on the POA you'll be here on a Wednesday and traffic will be heavy. Something to keep in mind as it can be stressful and frustrating.

I'd say drive time for that itinerary (without stopping) is about a conservative 3:45ish. A bit longer with traffic.