If you're going for Holiwood Nights, I would definitely recommend going to KK on that Friday. Keep in mind that Holiday World is on Central Time, so if you leave KK by 4:00 PM Eastern, you can get to Holiday World by 4:30 PM Central. 11 to 4 should be plenty of time to do the things that are most important to you. It's more than enough for the dry side of the park, and you'll definitely want to hit at least the highlights of the waterpark. Deep Water Dive is unlike anything Holiday World offers, so it should be a priority. Calypso Run is recommended as well. People speak highly of Deluge, but it was closed when I went, so I can't say from personal experience. The only slide I would recommend to skip is Tornado, since the line tends to be long and Holiday World's is superior. Friday night is Splashin' Safari ERT, so you'll get plenty of time there so don't feel like you have to get everything in at Hurricane Bay. Splashin' Safari is simply the best waterpark I've ever been to, but Hurricane Bay is excellent as well. You really should spend about half your day in the waterpark.