Totally off topic... My first memories in life are at Lisabeula, right across the water from Olalla. Back when the dock and some of the beach buildings were still there. Time flies whether we're having fun or not.
Based on what I see on your report, I'd suggest the Antennas Direct 'Juice' pre-amplifier. It's got plenty of gain (19 dB UHF), more than enough to overcome all your cable loss and still allow you to add a multi port splitter if you ever choose to. It's also going to beat most if not all the other competing product for noise performance and resistance to overloading.
https://www.amazon.com/dp/B00SVV2O6S...ing=UTF8&psc=1