Welcome to the Columbia River boat club neighbor! I have spent my whole life hunting the Lower Columbia from many crafts and looks like you got a good one.
Here is my 1.5 cents in order of importance: Invest in good life jackets, find a tide app and learn it, get a good gps (I use a handheld garmin that I can clip to my vest while running), avery extenda pole with mud foot (fill it with foam, they don't float from experience), marine radio hand held, have a buddy call list in case of troubles and never run the big river with an full outgoing tide and West wind over 20 in that boat (I get my neck hairs up once it tops West at 12mph on any outgoing).
Probably see ya out there, congrats.