Kayaks are great for day trips. The dog and I strongly prefer canoe or jon boat for overnighters. I camp heavy too, normally bring full sized cooler, lawn chair, folding table, a good sized dry box for food, stove, lantern, cooking gear etc. The soft stuff goes in dry bags. I sleep on a base camp therma rest in a semi-rectangular bag in a Timberline 4. Don't care for being cramped. Usually put up a tarp over the table area to help keep the dew and any sprinkles off. Somebody above mentioned taking a chainsaw in cool weather. Guilty of that too.
I'm way more about the whole river camping experience than ever being focused totally on fishing. I've taken three day 8 mile float trips.